สถิติ
เปิดเมื่อ28/01/2015
อัพเดท19/06/2024
ผู้เข้าชม2218730
แสดงหน้า2731459
ปฎิทิน
November 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 743444 | ตอบ 8448
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 :
5608
อ้างอิง

Remona
It's not my first time to pay a visit this web page, i am browsing this web site dailly and take pleasant information from here daily.
 
ลิงค์ที่เกี่ยวข้อง : https://worldcosplay.net/member/1196898
Remona [103.37.182.xxx] เมื่อ 29/07/2023 18:41
5609
อ้างอิง

อีกด้วย
เข้าถึง pg90 ทางเข้า สำรวจโลกของ pg90 ทางเข้าและค้นพบความลับในการเข้าถึงเนื้อหาออนไลน์ที่เฉพาะเจาะจง PG SLOT คู่มือนี้ครอบคลุมทุกสิ่งที่คุณต้องรู้เกี่ยว
 
อีกด้วย [5.62.62.xxx] เมื่อ 29/07/2023 20:05
5610
อ้างอิง

การเข้าร่วม
เข้าร่วม ค่าย pg เป็นที่น่าตื่นตาตื่นใจมากที่ค่าย pg ได้เปิดโอกาสให้คุณเข้าร่วมเกมที่น่าตื่นเต้นและน่าสนุกที่สุดในประเทศไทย PG SLOT ไม่ว่าคุณจะเป็นนักเล่นเกมมือใหม่หรือเก่าก็ตาม การเข้าร่วม
 
การเข้าร่วม [5.62.62.xxx] เมื่อ 29/07/2023 20:39
5611
อ้างอิง

Akilah
Simply want to say your article is as astonishing. The clearness in your post is simply great and i can assume you are an expert on this subject. Fine with your permission let me to grab your RSS feed to keep updated with forthcoming post. Thanks a million and please carry on the enjoyable work.
 
ลิงค์ที่เกี่ยวข้อง : https://dunung2free.com/
Akilah [141.94.254.xxx] เมื่อ 29/07/2023 20:51
5612
อ้างอิง

Avyaansharma
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
Security Services Chennai
 
Avyaansharma [45.121.2.xxx] เมื่อ 29/07/2023 21:20
5613
อ้างอิง

Emery
Hey there! Do you use Twitter? I'd like to follow you if that would be ok. I'm absolutely enjoying your blog and look forward to new updates.
 
ลิงค์ที่เกี่ยวข้อง : http://blog.redsymboltechnologies.com/forums/users/topdimple97/
Emery [23.231.1.xxx] เมื่อ 29/07/2023 21:59
5614
อ้างอิง

Peytonpia
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
Security Services in Chennai
 
ลิงค์ที่เกี่ยวข้อง : https://www.thebangaloreescorts.in/
Peytonpia [45.121.2.xxx] เมื่อ 29/07/2023 22:41
5615
อ้างอิง

pink cuty
 
pink cuty [152.58.56.xxx] เมื่อ 29/07/2023 23:13
5616
อ้างอิง

Katharina
Hello! This is kind of off topic but I need some help from an established blog. Is it very hard to set up your own blog? I'm not very techincal but I can figure things out pretty quick. I'm thinking about setting up my own but I'm not sure where to start. Do you have any tips or suggestions? Cheers
 
ลิงค์ที่เกี่ยวข้อง : https://dohabb.com/index.php?page=user&action=pub_profile&id=3611079
Katharina [51.68.139.xxx] เมื่อ 29/07/2023 23:28
5617
อ้างอิง

먹튀신고
I think it hit the nail on the head. I agree with you very much. It opened my mind. It will help more people answer questions and find a better person. Thank you for your effort. Let's give high five and cheer up. 먹튀신고
 
ลิงค์ที่เกี่ยวข้อง : https://totowho.com
먹튀신고 [54.254.209.xxx] เมื่อ 30/07/2023 12:02
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :