ทังสเตนคาร์ไบด์

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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

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Kurlov, p. 22
Blau, Peter J. (2003). Wear of Materials. Elsevier. p. 1345. ISBN 978-0-08-044301-0.
Pierson, Hugh O. (1992). Handbook of Chemical Vapor Deposition (CVD): Principles, Technology, and Applications. William Andrew Inc. ISBN 0-8155-1300-3.
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.
Groover, Mikell P. (2010). Fundamentals of Modern Manufacturing: Materials, Processes, and Systems. John Wiley & Sons. p. 135. ISBN 978-0-470-46700-8.
Kurlov, p. 3
Cardarelli, François (2008). Materials Handbook: A Concise Desktop Reference. Springer Science & Business Media. pp. 640–. ISBN 978-1-84628-669-8.
Kurlov, pp. 30, 135
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.
12th Report on Carcinogens'. National Toxicology Program. http://ntp.niehs.nih.gov/go/roc12. เรียกข้อมูลเมื่อ 2011-06-24.

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Neil Disoza	https://memes.tw/user/380170 https://hackmd.diverse-team.fr/s/HyUkhiP3lx https://pad.degrowth.net/s/dd4lddjvg https://pad.fablab-siegen.de/s/UsytcQnd7 https://app.brancher.ai/user/nTjV7FLWDOeL https://audpop.com/filmmakers/neil.disoza.294965/about https://forums.filatelija.lv/memberlist.php?mode=viewprofile&u=57843 https://md.coredump.ch/s/9G-xRnn00 https://paidforarticles.in/author/neildisoza789 https://md.chaospott.de/s/Bx_KDMIyl https://pad.interhop.org/s/dv64e9vZU https://www.selectleaders.com/employer/profile/28156/ https://www.revitcity.com/profile.php?user_id=2926367 https://auto-file.org/member.php?action=profile&uid=1253267 https://forum.green.ir/member.php?action=profile&uid=7195 https://md.ctdo.de/s/Oq52ztK5- https://md.un-hack-bar.de/s/rFjpDM3zY https://pads.zapf.in/s/_Zsrjprwb https://sketchersunited.org/users/280983 https://www.chrt.co.uk/profile/neildisoza78951957/profile https://www.TwosApp.com/68da5a958e3c457362b725ee http://git.7doc.com.cn/neildisoza789 https://social.contadordeinscritos.xyz/neildisoza789 https://posao.zumm.info/candidate/neil-disoza/ https://www.sunkenlandgame.com/profile/neildisoza78993586/profile https://careers.coloradopublichealth.org/profiles/7244485-neil-disoza https://www.bishopartsdistrict.com/profile/neildisoza78983997/profile https://triumph.srivenkateshwaraa.edu.in/profile/neildisoza789 https://www.cani.com/attivita/how-to-increase-domain-authority https://www.socialbookmarkingwebsite.com/user/SUlGeOwn2xL0 https://www.betmma.tips/neildisoza789 https://veterinarypracticetransition.com/author/neildisoza789/ https://www.letsknowit.com/neil38990 https://go2fete.com/profile/neil-disoza/ https://classmill.com/neildisoza https://www.ascecuba.org/profile/neildisoza78959758/profile
	Neil Disoza [152.57.157.xxx] เมื่อ 29/09/2025 18:52

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Serving society with integrity as an expert in saw blades