สถิติ
เปิดเมื่อ28/01/2015
อัพเดท19/06/2024
ผู้เข้าชม1835940
แสดงหน้า2307063
ปฎิทิน
June 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 567705 | ตอบ 7955
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 :
6048
อ้างอิง

Mumbai Escorts

The men can explore the young beauty from our agency vipmumbaiescorts web, and the Female Escorts in Mumbai are one of the hip and high-end possibilities for them. In the modern era, consumers may get anything delivered right to their home, including the Mumbai Escorts services.
Mumbai Escorts Services: Mumbai Escorts | Mumbai Call Girls | Mumbai Escort Girls | Mumbai Escort Models | Mumbai Desi Girls | Foreign Escort Girls in Mumbai | Mumbai Call Girl Photo | Mumbai Escorts Offer | Mumbai Escorts Blog | Mumbai Call Girl Phone Number 
Mumbai Escorts Locations: 
Andhei Escorts | Bandra Escorts | Vashi Escorts | Nerul Escorts | Belhapur Escorts | Kolhapur Escorts | Mumbai Central Escorts | Mira Road Escorts | Titwala Escorts | Gorai Escorts | Mahim Escorts | Panvel Escorts | Thane Escorts | Palghar Escorts | Sion Escorts | Lonavala Escorts
 Mumbai Escorts Categories: Mumbai Erotic Massage | Mumbai Gay Escorts | Mumbai Muslim Call Girls | Mumbai North Indian Escorts | Mumbai Freelance Escorts | Mumbai Aunty Escorts | Mumbai Whatsapp Sex Chat | Mumbai Phone Sex Service | Mumbai Sex Aunty Number | Mumbai Call Girls Whatsapp Number | Mumbai Russian Escorts | Actress Escorts in Mumbai | Marathi Call Girls Mumbai | African Escorts in Mumbai | Virgin Call Girls in Mumbai | Nepali Escorts in Mumbai | Mumbai College Girl Escorts | Bdsm Escorts Mumbai | Strip Clubs in Mumbai | Foot Fetish Escorts In Mumbai
 
ลิงค์ที่เกี่ยวข้อง : https://www.vipmumbaiescorts.net/
Mumbai Escorts [106.221.147.xxx] เมื่อ 1/09/2023 18:11
6049
อ้างอิง

Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
Chennai Guide
 
Chennai Guide [45.121.2.xxx] เมื่อ 1/09/2023 21:39
6050
อ้างอิง

Cedric
I'm pretty pleased to find this page. I wanted to thank you for your time due to this fantastic read!! I definitely loved every part of it and I have you saved to fav to look at new stuff on your website.
 
ลิงค์ที่เกี่ยวข้อง : https://rozeremgfb.com/
Cedric [65.109.68.xxx] เมื่อ 1/09/2023 22:31
6051
อ้างอิง

Deloris
For those who haven’t performed Tearaway before, it’s a third-particular person platformer with a heavy emphasis on environmental interaction and simply typically soaking in the adorably creative world Media Molecule has created. Tearaway Unfolded contains new gadgets and areas to explore, so there’s enough right here to warrant a double dip if you’ve already performed the Vita edition, but in a market dominant by violent games, it’s good to see one that actually is made for anybody to take pleasure in. This is a special recreation and indisputably one of the PS4’s best exclusives to-date. In some ways, the 2 video games will be considered as complementary experiences as although they are largely the same game, they offer totally different perspectives on the same papercraft world Media Molecule has created because of the variations in the Vita and PS4’s features. The most effective half is that Wolfenstein: The new Order and its excellent expansion, The Old Blood, can now be attained for very low prices and are should-play experiences for anybody who grew up on Wolfenstein and different old style shooters. It was comically named after cartoon character Wile E. Coyote, who routinely had points with the laws of physics whereas trying to catch the Road Runner. Set in a high fantasy world, players control a character who parties up with a group of exiles as they journey by way of a purgatory of types in an effort to cleanse their souls by defeating different exiles. While the character classes and talent timber are nowhere close to as complex as one thing like Diablo 3, they’re a welcome addition that help keep Alienation from devolving into simply another taking pictures gallery experience. Featuring a high-down perspective harking back to MOBAs like League of Legends and DOTA 2 and presenting it as a sport that feels lots like Rocket League of all games, Pyre’s three-on-three battles are fun and addicting, to the point the place it feels like a missed opportunity that Supergiant didn’t include an internet element (the sport supports local multiplayer for two gamers). RAJAWIN - https://researchwatercoolers.com
 
ลิงค์ที่เกี่ยวข้อง : https://researchwatercoolers.com
Deloris [45.249.104.xxx] เมื่อ 2/09/2023 09:45
6052
อ้างอิง

메이저사이트
If someone wishes to obtain expert opinions on blog and website construction, I suggest that they visit this website and continue to do their job well.메이저사이트
 
ลิงค์ที่เกี่ยวข้อง : https://totochips.com
메이저사이트 [13.229.57.xxx] เมื่อ 2/09/2023 13:15
6053
อ้างอิง

Ridhima Bakshi

Rajouri Garden Escorts Missdelhi Agency is safe and secure and provides high-profile model girls and women who are always ready into bed to satisfy your physical requirements they have the best experience and know how to fill color in your life so hire now and enjoy  more visit the website:-  

 
 
ลิงค์ที่เกี่ยวข้อง : https://www.4shared.com/u/D-risegU/ridhimap632.html
Ridhima Bakshi [27.5.24.xxx] เมื่อ 2/09/2023 15:13
6054
อ้างอิง

Patent Lawyers in Chennai
Find the Best Expert to resolve Issues. This article provides an overview of the areas of practice and courts practised at Rajendra Law Office Chennai. ​Patent Lawyers in Chennai
 
 
Patent Lawyers in Chennai [137.59.221.xxx] เมื่อ 2/09/2023 16:12
6055
อ้างอิง

Lawanna
Wow! After all I got a weblog from where I be capable of in fact get valuable information concerning my study and knowledge.
 
6056
อ้างอิง

Ahmedabad Escorts Service
Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmed abad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmed abad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmed abad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmed abad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmed abad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts Ahmedabad Escorts
 
Ahmedabad Escorts Service [45.121.2.xxx] เมื่อ 2/09/2023 23:08
6057
อ้างอิง

Call Girls Bangalore

Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls Bangalore Call Girls

 
Call Girls Bangalore [45.121.2.xxx] เมื่อ 3/09/2023 00:33
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :