สถิติ
เปิดเมื่อ28/01/2015
อัพเดท10/11/2023
ผู้เข้าชม1697602
แสดงหน้า2156356
ปฎิทิน
April 2024
Sun Mon Tue Wed Thu Fri Sat
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
    
สมาชิก

สมัครสมาชิก | ลืมรหัสผ่าน

ทังสเตนคาร์ไบด์

อ่าน 505737 | ตอบ 7774
ทังสเตนคาร์ไบด์
       ทังสเตนคาร์ไบด์ (อังกฤษ: tungsten carbide) มีสูตรเคมีคือ WC ในรูปพื้นฐานจะมีลักษณะเป็นผงสีเทาละเอียด มี 2 โครงสร้างคือแบบหกเหลี่ยม (α-WC) และแบบลูกบาศก์ (β-WC)
 
       ทังสเตนคาร์ไบด์เตรียมได้จากการทำปฏิกิริยาระหว่างทังสเตนกับคาร์บอนที่อุณหภูมิ 1400–2000 °C[3] หรือให้ความร้อนกับทังสเตนไตรออกไซด์และแกรไฟต์โดยตรงที่ 900 °C หรือในแก๊สไฮโดรเจนที่ 670 °C ตามด้วยการคาร์บิวไรเซชันในแก๊สอาร์กอนที่ 1000 °C[4] หรือใช้วิธีการเคลือบด้วยไอเคมี เช่น
  • ทำปฏิกิริยาระหว่างทังสเตนเฮกซะคลอไรด์กับไฮโดรเจนและมีเทนที่อุณหภูมิ 670 °C (1,238 °F)
 WCl6 + H2 + CH4 WC + 6 HCl
  • ทำปฏิกิริยาระหว่างทังสเตนเฮกซะฟลูออไรด์กับไฮโดรเจนและเมทานอลที่อุณหภูมิ 350 °C (662 °F)
                WF6 + 2 H2 + CH3OH → WC + 6 HF + H2O
       ทังสเตนคาร์ไบด์มีจุดหลอมเหลวที่ 2,870 °C (5,200 °F) และจุดเดือดที่ 6,000 °C (10,830 °F) มีความแข็งระดับ 9 ตามมาตราโมสและประมาณ 2600 ตามมาตราวิกเคอส์[5] ทังสเตนคาร์ไบด์มีความแข็งเกร็งมากกว่าเหล็กกล้าประมาณ 2 เท่า มีค่ามอดุลัสของยังประมาณ 530–700 GPa (77,000–102,000 ksi)[2][6][5][7] โมดูลัสของแรงบีบอัด 630–655 GPa และโมดูลัสของแรงเฉือน 274 GPa[8]
 
ด้วยคุณสมบัติความแข็งและทนความร้อนสูง ทังสเตนคาร์ไบด์จึงใช้ทำเป็นเครื่องมือตัดหรือหัวเจาะ ใช้ทำกระสุนเจาะเกราะ เครื่องมือผ่าตัด อุปกรณ์กีฬา เครื่องประดับและอื่น ๆ
 
 
 
 
 
 
 
 
 
 
อ้างอิง
 
  1. Kurlov, p. 22
  2. Blau, Peter J. (2003). Wear of Materials. Elsevier. p. 1345. ISBN 978-0-08-044301-0.
  3. Pierson, Hugh O. (1992). Handbook of Chemical Vapor Deposition (CVD): Principles, Technology, and Applications. William Andrew Inc. ISBN 0-8155-1300-3.
  4. Zhong, Y.; Shaw, L. (2011). 'A study on the synthesis of nanostructured WC–10 wt% Co particles from WO3 , Co3O4 , and graphite'. Journal of Materials Science 46 (19): 6323–6331. Bibcode:2011JMatS..46.6323Z. doi:10.1007/s10853-010-4937-y.
  5. Groover, Mikell P. (2010). Fundamentals of Modern Manufacturing: Materials, Processes, and Systems. John Wiley & Sons. p. 135. ISBN 978-0-470-46700-8.
  6. Kurlov, p. 3
  7. Cardarelli, François (2008). Materials Handbook: A Concise Desktop Reference. Springer Science & Business Media. pp. 640–. ISBN 978-1-84628-669-8.
  8. Kurlov, pp. 30, 135
  9. Sprince, NL.; Chamberlin, RI.; Hales, CA.; Weber, AL.; Kazemi, H. (1984). 'Respiratory disease in tungsten carbide production workers'. Chest 86 (4): 549–557. PMID 6434250. doi:10.1378/chest.86.4.549.
  10. 12th Report on Carcinogens'. National Toxicology Program. http://ntp.niehs.nih.gov/go/roc12. เรียกข้อมูลเมื่อ 2011-06-24.
ความคิดเห็น :
4508
อ้างอิง

Kiran Bhatt
You can find here some of the most captivating call girls in Mumbai, who are ready to pamper you with mind-blowing mumbai call girl service Mumbai call girl service. They will take your breath away with their exemplary attitude and stunning figure.
russian call girls in mumbai | Call Girls Mumbai | Mumbai Call Girls Agency | Mumbai Escorts | Mumbai Call Girls Profile | Mumbai Call Girls Service | Mumbai Call Girls Price List | Mumbai Call Girls Phone No | independent call girl in Kashmiri | andheri call girl | independent call girl in bandra | independent call girl in Navi mumbai | independent call girl in Vashi | independent call girl in Miraroad | independent call girl in thane | independent call girl in chembur | independent call girl in Powai | independent call girl in Goregaon | independent call girl in Nerul | independent call girl in Malad | independent call girl in Kurla | independent call girl in Juhu | independent call girl in Sakinaka | independent call girl in Dahisar | independent call girl in Dombivali | independent call girl in Marol Naka |independent call girl in Jogeshwari | independent call girl in in Mulund | independent call girl in Borivali | independent call girl in Vikhroli | independent call girl in Ghatkopar | independent call girl in Bhandup Booking A Call Girl In Mumbai | call girl booking website in mumbai | russian call girls in mumbai | Escorts girls in panvel mumbai | Grand Hyatt Call Girls Service | Hotel Sahara Star Call Girls Service | Jw Marriott Mumbai Call Girls Service | The Leela Mumbai Call Girls Service | The Lalit Mumbai Call Girls Service | Hotel Obrei Call Girls Service | Ramee Guestline Hotel Call Girls Service | Four Points By Sheraton Navi Mumbai Call Girls Service | Taj hotels with call girls |
 
ลิงค์ที่เกี่ยวข้อง : https://www.callgirlsmumbai.net
Kiran Bhatt [106.208.238.xxx] เมื่อ 12/05/2023 21:48
4509
อ้างอิง

Kiran Bhatt
You can find here some of the most captivating call girls in Mumbai, who are ready to pamper you with mind-blowing mumbai call girl service Mumbai call girl service. They will take your breath away with their exemplary attitude and stunning figure.
bombay call girl | Call Girls Mumbai | Mumbai Call Girls Agency | Mumbai Escorts | Mumbai Call Girls Profile | Mumbai Call Girls Service | Mumbai Call Girls Price List | Mumbai Call Girls Phone No | independent call girl in Kashmiri | andheri call girls contact number | independent call girl in bandra | independent call girl in Navi mumbai | independent call girl in Vashi | independent call girl in Miraroad | independent call girl in thane | independent call girl in chembur | independent call girl in Powai | independent call girl in Goregaon | independent call girl in Nerul | independent call girl in Malad | independent call girl in Kurla | independent call girl in Juhu | independent call girl in Sakinaka | independent call girl in Dahisar | independent call girl in Dombivali | independent call girl in Marol Naka |independent call girl in Jogeshwari | independent call girl in in Mulund | independent call girl in Borivali | independent call girl in Vikhroli | independent call girl in Ghatkopar | independent call girl in Bhandup Booking A Call Girl In Mumbai | call girl booking website in mumbai | russian call girls in mumbai | Escorts girls in panvel mumbai | Grand Hyatt Call Girls Service | Hotel Sahara Star Call Girls Service | Jw Marriott Mumbai Call Girls Service | The Leela Mumbai Call Girls Service | The Lalit Mumbai Call Girls Service | Hotel Obrei Call Girls Service | Ramee Guestline Hotel Call Girls Service | Four Points By Sheraton Navi Mumbai Call Girls Service | Taj hotels with call girls |
 
ลิงค์ที่เกี่ยวข้อง : https://www.callgirlsmumbai.net
Kiran Bhatt [106.208.238.xxx] เมื่อ 12/05/2023 22:13
4510
อ้างอิง

Digital Marketing Lahore
I love this blog!!!!
<a href='https://digitalmarketinginlahore.com/'>Digital Marketing in Lahore</a>
<a href='https://digitalmarketinginlahore.com/social-media-optimization-services-in-lahore/'>Social Media Marketing in Lahore</a>
<a href='https://digitalmarketinginlahore.com/ppc-services-in-lahore-pakistan/'>PPC Services in Lahore</a>
<a href='https://digitalmarketinginlahore.com/web-development-services-in-lahore/'>Web Development Services in Lahore</a>
<a href='https://digitalmarketinginlahore.com/digital-marketing-services-in-lahore/'>Digital Marketing Services in Lahore</a>
<a href='https://digitalmarketinginlahore.com/seo-services-in-lahore/'>SEO Services in Lahore</a>
<a href=''></a>


 
ลิงค์ที่เกี่ยวข้อง : https://digitalmarketinginlahore.com/
Digital Marketing Lahore [39.45.51.xxx] เมื่อ 13/05/2023 02:31
4511
อ้างอิง

Tropical spa
Very nice blog!!!!
<a href='https://tropicalspa.pk/'>Massage Center in Islamabad</a>
<a href='https://tropicalspa.pk/'>Tropical Spa</a><a href='https ://tropicalspa.pk/about-tropical-spa-in-islamabad/'>Spa in Islamabad</a>
<a href='https://tropicalspa.pk/massage-services-in-islamabad/'>Massage Services in Islamabad</a><a href='https://tropicalspa.pk/'>Massage in Islamabad</a>
 
ลิงค์ที่เกี่ยวข้อง : https://tropicalspa.pk/
Tropical spa [39.45.51.xxx] เมื่อ 13/05/2023 02:34
4512
อ้างอิง

Kolkata Call Girls

WELCOME TO ESCORTS SERVICE IN PARK STREET KOLKATA

It is safe to say that you are anxiously searching for a delightful and shocking young lady who is glad to work with and engage you a ton? Clearly, you are totally in a perfect spot of cure. We have different autonomous high profile escorts in kolkata who surpass assumptions in a dating scene and satisfying the requirements and request of the clients. On the off chance that you are away from everybody looking for an escort, we are here to give you broad joy in Kolkata with extraordinary capacities of hot high profile call girls in kolkata .

WE HAVE THE MOST DESIRABLE ESCORTS SERVICE IN KOLKATA

Have you at any point looked at our exhibition and can track down an alluring, genial Kolkata escorts call young lady to make the most of your trip or alone evening? Do you lean towards thin or thrilling young ladies, hot-blooded or merry, extra develop or school call young ladies? The entirety of the models escorts are totally material and expressive and can fit faultlessly in all settings. You will discover alluring darlings, sexual and exuberant miracles for a remarkable accomplice there is somebody for each taste. Every one of the prominent foreigner escorts in kolkata have their own uncommon individual characteristics and a one of a kind, remarkable look and accordingly give a genuinely outlandish escort insight to fragile extraordinary men. At present you should simply pick which of these alluring cuts is for you.

When you select some of our prominent high profile escort service in kolkata after then you can concerned yourself inside the world loaded with sexual fulfilment and delight. Handle the significance of Self Love and with this daily routine dynamical call you'll have the option to experience life on max speed. Presently it's an ideal opportunity to blessing yourself extra powerful an improved modus vivendi with not so much pressure but rather more fun.

Be brilliant and begin utilizing Kolkata Escorts Service!

Prominent call young ladies in Kolkata are strong and wonderful they can draw in our clients willing to dispose of their depression with our fiery and energetic call young ladies.

call girls in kolkata

independent call girls in kolkata

call girls service in kolkata

russian call girls in kolkata

call girls number in kolkata

call girls in kolkata locanto

cheap call girls in kolkata

best call girls in kolkata

call girls in kolkata hotels

vip call girls in kolkata

how to find call girls in kolkata

call girls in newtown kolkata

high profile call girls in kolkata

how to get call girls in kolkata

call girls in south kolkata

locanto call girls in kolkata

genuine call girls in kolkata

bengali call girls in kolkata

hot call girls in kolkata

where to find call girls in kolkata

call girls jobs in kolkata

housewife call girls in kolkata

call girls in kolkata new town

hotel in kolkata with call girls

call girls booking in kolkata

call girls in park hotel kolkata

call girls in kolkata at cheap rate

call girl in kolkata

college call girls in kolkata

female call girls in kolkata

call girls in parnasree kolkata

call girls in new town kolkata

best place for call girls in kolkata

night call girls in kolkata

beautiful call girls in kolkata

call girls for sex in kolkata

contact numbers of call girls in kolkata

call girls in hotel kolkata

call girls in kolkata ph no

call girls sex video in kolkata

amateur call girls in kolkata

call girls in kolkata mr tapas

call girls under 2000 in kolkata

cheap rate call girls in kolkata

nepali call girls in kolkata

call girls in salt lake kolkata

real call girls in kolkata

sexy call girls in kolkata

 
ลิงค์ที่เกี่ยวข้อง : https://www.misspalak.com/
Kolkata Call Girls [182.64.205.xxx] เมื่อ 13/05/2023 14:15
4513
อ้างอิง

Faridabad call girls

escort service in faridabad

escort service

escort service faridabad

call girl in faridabad

faridabad escort service

call girls in faridabad

call girl faridabad

escort service near me

faridabad call girl

faridabad call girls

escorts service in faridabad

escort services in faridabad

escorts in faridabad

call girls faridabad

independent call girl

escort girl

escort girl faridabad

escorts services in faridabad

escorts service faridabad

faridabad escorts service

faridabad escort services

faridabad escorts

escorts service

escort girl in faridabad

female escorts in faridabad

call girls near me

escort girls in faridabad

escort services faridabad

call girl service in faridabad

escort services

escorts service near me

faridabad escort

escorts near me

faridabad escort girls

faridabad call girl service

call girl service

escort near me

call girls

female escort

escort call girl

call girl near me

escorts services

escort girls faridabad

escort girls

escorts girl

callgirl in faridabad

escort services near me

sex service in faridabad

faridabad call girl number

play girl service

escort service number

escort call girl faridabad

female escorts near me

faridabad escort girl

escorts girls in faridabad

escort girl service

callgirl faridabad

excort service

call girl service faridabad

female escorts faridabad

call girl fridabad

call girl number faridabad

faridabad call girl full night

faridabad call girl contact number

sex girl faridabad

female escort near me

excort girl

call girl

prostitute in faridabad

indipendent call girl

faridabad sexy

independent call girl in faridabad

faridabad call girls number

call girl booking

escorts girls

sex service faridabad

girl service

online escort service

escorts services near me

कॉल गर्ल फरीदाबाद

escort service girls

independent callgirl

escort servive

escort sarvise

prostitutes in faridabad

prostitute service

escort sarvice

call girl bp

service girl

esscort service

escort seevice

escote service

excort services

vip call girl

independent call girls

independent call girl service

paid sex in faridabad

night girl service

call girl independent

escort service girl

call girl services

independent call girl faridabad

independence call girl

call girl no

escort call girls

high class call girls

verified independent escorts girls available today

escort girl online

sex services

escortservice

escort service contact number

escorts call girls

escorts call girl

call girl price

escorte service

sexy call girls

girl escort

best call girl booking site

sexy service girl

escourt service

call girls service

independent call girls near me

call girl near by me

call girls in haryana

escort sevice

eacort near me

girls escort near me

night service girl

independant call girl

call girl home service

escort servive near me

escort sarvis

eacort service

call girls escorts

desi escort service

escorts girls near me

home service call girl

callgirl

escort girl no

 
ลิงค์ที่เกี่ยวข้อง : https://www.madamjuhi.com/
Faridabad call girls [182.64.205.xxx] เมื่อ 13/05/2023 17:10
4514
อ้างอิง

Nikita Mumbai
Unforgettable escorting experiences are available in Mumbai! Our Mumbai escorts provide a range of services to guarantee an experience you won't forget. From accompanying you to a social event or a romantic dinner to the more intimate encounters, let your imagination explore. Book now for an invigorating and indulgent rendezvous with our Mumbai escort services!

Visit Our Website @ https://www.nikitamumbai.com
 
ลิงค์ที่เกี่ยวข้อง : https://www.nikitamumbai.com
Nikita Mumbai [117.251.216.xxx] เมื่อ 13/05/2023 17:11
4515
อ้างอิง

Fredericka
https://ide.geeksforgeeks.org/tryit.php/65392d01-95ea-4dbb-8b45-24f15acb567e https://telegra.ph/Dzieje-porcelany-z-Polski-04-07-4 https://wilkinson-kock-3.hubstack.net/jak-tworzyla-sie-polska-ceramika https://lundehurley59.livejournal.com/profile https://rentry.co/ap26u http://finepaste04.xtgem.com/__xt_blog/__xtblog_entry/__xtblog_entry/33558535-porcelana-z-polski.-dzieje-powstania-ciekawej-tradycji?__xtblog_block_id=1 https://www.openlearning.com/u/templetonbroussard-rsqt13/blog/PorcelanaZPolskiDziejePowstaniaCiekawejTradycji
 
ลิงค์ที่เกี่ยวข้อง : https://regretliquor21.doodlekit.com/blog/entry/25130409/porcelana-z-polski-historia-powstania-ciekawej-tradycji
Fredericka [123.183.160.xxx] เมื่อ 14/05/2023 00:22
4516
อ้างอิง

Karol
I’m not that much of a internet reader to be honest but your blogs really nice, keep it up! I'll go ahead and bookmark your website to come back later on. All the best
 
ลิงค์ที่เกี่ยวข้อง : https://buyamitriptylineonlineuk.com/product/tryptomer-10-25-50-75-mg-tablets/
Karol [176.117.243.xxx] เมื่อ 14/05/2023 10:50
4517
อ้างอิง

mantra tech
Thanks for a marvelous posting! I really enjoyed reading it, you might be a great author.I will make certain to bookmark your blog and may come back in the foreseeable future. 

Read More:  movierulz4
 
ลิงค์ที่เกี่ยวข้อง : https://gotechmantra.com/
mantra tech [49.37.129.xxx] เมื่อ 14/05/2023 11:47
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :