สถิติ
เปิดเมื่อ28/01/2015
อัพเดท19/06/2024
ผู้เข้าชม2219374
แสดงหน้า2732103
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 743969 | 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 :
3809
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 [139.135.36.xxx] เมื่อ 7/03/2023 22:52
3810
อ้างอิง

Natasha Roy
Welcomes you to the best escort solutions in Hyderabad city, Hyderabad Escort Solution offers our customers with the best remarkable as well as captivating girls and designs, young women anywhere via Hyderabad Escorts Solution Call Girls Firm city, Hyderabad Escorts Agency gives fulfillment due to the fact that for His function, We select the models and young women and also groom them, that after that vigorously arranged to offer You with both sex-related and non-sexual Hyderabad Escort Solutions. You're trying to find fantastic model female companions in the city, by then your passion stops in light of the way that there are lots of authority escorts in association with independent elite young ladies below. We are the best Hyderabad escorts agency supplying unmatched female escorts in Hyderabad. Our attractive young women are offered both for gos to on their remarkable cushions and also for getaways in motels or loft spaces. Our VIP Hyderabad Escort office welcomes you 24/7. You will certainly be amazed by the more widespread social affair of Hyderabad Escorts Solution Telephone Call Girls Company of girls in Hyderabad to your joy and contentment.
FUN ENJOYMENT & COCKTAIL LOUNGE ESCORTS LADY IN HYDERABAD
Our objective is to offer our clients with Enjoyable Enjoy & Club Women Escorts in Hyderabad with superb friends, a cabal of world-class as well as attractive escorts in a fascinating location, unbelievable expenses, and also a vast collection of worthless and also remarkable ladies with actual pictures. Some of our young ladies work as prostitutes throughout the world, top quality models and totally free High profile escorts Hyderabad  and also each one of them is really captivating and also hot so we can make sure they will certainly save you a number of minutes. and remain. He redirected you one evening with reverence, power, and also exceptional enjoyable.
Offer good Call Girls Escorts Solution in Hyderabad
Our Escorts Hyderabad firm offers a clear escort solution to our Hyderabad Escorts customers and never offers girls that are not only great for entertaining children yet additionally healthy and balanced and also risk-free companions providing verified luxury resort information. Our Escorts Girls in Hyderabad remain in outstanding, spectacular, reputable, and hot condition as well as they work hard to appreciate their gorgeous solution in the city of Hyderabad. We never deceive our customers and also offer them with real companion girls, as we have discovered that several escort companies dual deal with their customers and also bill more for less costly escort services, however we give them reputable escort solutions confirmed photos of picked escort girls from the first-class hotel, so you can trust me and also call me to enjoy.

We are among the few companies in India where you can expect classy and erudite sexual Escort Hyderabad for ladies. In order to offer our valued customers pleasant moments, we are constantly at your disposal.

We furnish you with a lovely experience gown to reveal your dreams as well as not to consider causing any kind of sort of humiliation to our consumers. All of us wish to ensure you meet us comfortably as well as make us the best around.

Our elite escorts in the city are made to act worldwide, the versions are genuine, they are versions in reality and when you touch them, they give you the sensation of an angel and also the best enjoyment. Our escorts are hand-picked by top-quality girls as well as are supplied with verifiable records as well as referrals from reputable customers to confirm the phenomenal top quality of the solution Hyderabad Escorts Service offered.

Hyderabad Call Girl Company offers women escort service in Hyderabad, Hyderabad Phone call Girls for well-regarded clients including citizens as well as tourists in Hyderabad's resources. Our elite model escorts from Hyderabad as well as top-class call girls from all over Hyderabad are available for call-out and also call-in services. If you are a lonesome traveler in Hyderabad looking for friends or are seeking the company of the excellent soulmate, please call our escort agency in the city of Hyderabad.

AMONG THE VERY BEST Escort FIRM IN HYDERABAD INDIA
Our NatashaRoy Hyderabad Escorts firm gives clear companion solutions to our Hyderabad Companions customers as well as never provides girls that are not just good at enjoyable boys but also healthy and secure companions providing confirmed luxury hotel data. We never ever play fools with our clients and also give them with genuine escort ladies, as we discover that lots of companion agencies double bargain with customers as well as require even more rates as well as cheaper companion solutions they never ever offer their customers actual companion woman dates and also a lot more, we give healthy and balanced and much safer escort solutions confirmed for them by luxury resort photos of selected companion ladies to make sure that you can trust me and also call me for fun and also enjoyment escort dating time in Hyderabad city as well as you will certainly find the Hyderabad Female Escorts in the sensual services we provide in Hyderabad are created to offer our customers with thrilling sex-related enjoyment.

 
 
Natasha Roy [45.121.2.xxx] เมื่อ 8/03/2023 13:26
3811
อ้างอิง

Joanne
I gotta bookmark this website it seems very beneficial. Thank you! https://www.sidingcoquitlambc.com/siding-replacement
 
Joanne [158.62.0.xxx] เมื่อ 8/03/2023 16:01
3812
อ้างอิง

Amelia Wotson
Awesome Blog !!! Thanks to Admin for sharing the above list. I visited many pages of your Blog. Really your Blog is Awesome. Keep Sharing such good Stories. Thanks.
Visit Us: Black Rutile Jewelry
 
Amelia Wotson [103.137.85.xxx] เมื่อ 8/03/2023 17:33
3813
อ้างอิง

searchengineinsight
Writing for this topic can cover a wide range of subjects, from data management and analysis to machine learning and artificial intelligence. It aims to educate and inform readers about the latest developments, techniques, and applications of Big Data in various industries and sectors. By contributing to 'Write for us Big Data,' writers can share their expertise, expand their network, and enhance their online visibility.
 
ลิงค์ที่เกี่ยวข้อง : https://www.searchengineinsight.com/big-data-write-for-us-guest-post-blog/
searchengineinsight [223.123.87.xxx] เมื่อ 8/03/2023 17:35
3814
อ้างอิง

digital marketing
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 [182.182.74.xxx] เมื่อ 8/03/2023 22:26
3815
อ้างอิง

digital marketing
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 [182.182.74.xxx] เมื่อ 8/03/2023 22:26
3816
อ้างอิง

siana
 
siana [154.177.179.xxx] เมื่อ 9/03/2023 02:15
3817
อ้างอิง

gorilla vape

Your creativity has been excellent and reading your blog.

gorilla vape

 
ลิงค์ที่เกี่ยวข้อง : https://herbapproach.com/product/gorilla-glue-disposable-vape-pen-straight-goods/
gorilla vape [122.52.176.xxx] เมื่อ 9/03/2023 10:26
3818
อ้างอิง

Luigi
Hi, i feel that i saw you visited my weblog so i came to go back the prefer?.I am trying to find things to enhance my site!I assume its good enough to make use of some of your ideas!!
 
ลิงค์ที่เกี่ยวข้อง : https://escortsclubpak.com/escorts-in-islamabad/
Luigi [180.178.191.xxx] เมื่อ 9/03/2023 11:10
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :