สถิติ
เปิดเมื่อ28/01/2015
อัพเดท10/11/2023
ผู้เข้าชม1693237
แสดงหน้า2151564
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 503403 | ตอบ 7770
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 :
4009
อ้างอิง

Udaipur Escorts
udaipur Escort service  love having sex and I always try to please, I want to see you roll your eyes from so much pleasure. I'm a high level woman for men who 
enjoy beautiful company andi love sex.

I am a hot and loving woman, sex with me is passionate, and lustful. I get intensely involved during my sessions, Udaipur escorts  and with me you can expect real sex and pleasure.<a href='https://www.jeshika.com/kamrup-escort'> Kamrup Escorts</a> || <> || 
<a href='https://www.jeshika.com/karbianglong-escort'> Karbianglong Escorts</a> || <> || 
<a href='https://www.jeshika.com/karimganj-escort'> Karimganj Escorts</a> || <> || 
<a href='https://www.jeshika.com/kokrajhar-escort'> Kokrajhar Escorts</a> || <> || 
<a href='https://www.jeshika.com/lakhimpur-escort'> Lakhimpur Escorts</a> || <> || 
<a href='https://www.jeshika.com/majuli-escort'> Majuli Escorts</a> || <> || 
<a href='https://www.jeshika.com/morigaon-escort'> Morigaon Escorts</a> || <> || 
<a href='https://www.jeshika.com/nagaon-escort'> Nagaon Escorts</a> || <> || 
<a href='https://www.jeshika.com/nalbari-escort'> Nalbari Escorts</a> || <> || 
<a href='https://www.jeshika.com/sivasagar-escort'> Sivasagar Escorts</a> || <> || 
<a href='https://www.jeshika.com/sonitpur-escort'> Sonitpur Escorts</a> || <> || 
<a href='https://www.jeshika.com/south-salmara-Mankachar-escort'> South Salmara Mankachar Escorts</a> || <> || 
 
ลิงค์ที่เกี่ยวข้อง : https://www.rashmika.co.in/
Udaipur Escorts [49.204.162.xxx] เมื่อ 27/03/2023 13:09
4010
อ้างอิง

Udaipur VIP Escorts
Our Escort in Udaipur stands out due to their one-of-a-kind style and attentiveness. We are the best private Escort Service in Udaipur. Let’s say you’ve had enough of the Udaipur Call Ladies
 
ลิงค์ที่เกี่ยวข้อง : https://www.rashmika.co.in
Udaipur VIP Escorts [49.204.165.xxx] เมื่อ 27/03/2023 15:03
4011
อ้างอิง

yomitaoberoi88
Discover Famous Escorts in Ahmedabad
 
The Ahmedabad Escorts Team is skilled in providing independent escort female services, allowing you to fulfill your sensual fantasies with famous call girls. In our agency, we work with skilled and qualified housewives and girls. They collaborate with our team freely and enjoy a luxurious lifestyle for the sex gratification of others. We have a strong reputation for providing the best service possible to ensure customer satisfaction and meet all of our clients' expectations. We have a stunning VIP call girl on staff. Our finest escorts will decide what your every single intensely wonderful notion will be.
 
Our escort team is ready to serve you around-the-clock, every day.
We are always available, 365 days a year, 24 hours a day. You can benefit from our agency, so engage one of our high-profile, attractive escorts for your fun-filled evening. Then talking to us is the simplest approach to receive sexy escorts. We provide the best Ahmedabad Call Girls escort services around the clock. To hire the housewives for your nighttime excursion, just give them a call.
 
Book Call Girls for Cheap Prices
Placing an order for our Ahmedabad escorts serviceTake a mobile number or email from the Book Top Escorts website now. Call us or send the management an email to let them know what you want. Get in-call escort services from nearby call girls at incredibly inexpensive prices. Meet up with our call girls for some nighttime fun with these low-cost escorts.
 
Our Escorts in Ahmedabad Team has a variety of five-star and three-star hotels where we may anytime send stunning Escorts of your choice. After you place your purchase, a call from one of our call girls will be made to you personally in less than 30 minutes. In all of the five-star hotels in Ahmedabad, we maintain the client's privacy and offer him protection.
 
With over 15 years of expertise providing hot escorts, our agency specializes in offering the greatest escort girl's service. She then meets all of our clients' requests and provides the best in sensual enjoyment. Our Escorts Service in Ahmedabad is stunning and has eye-catching looks. Everyone is aware that only sexual activity may significantly increase overall body relaxation. For the finest price, our agency gives you one of the most fantastic girls to provide more relaxation for your complete body if you require outstanding pleasurable services. Our entire staffs of call girls are incredibly professional; they understand all customer needs and cater to them.
High profile call girls from Ahmedabad
 
Select a friend to share the fun with. All of ourAhmedabad Female Escorts are skilled and adept at fulfilling every need for sensual encounters. Ahmedabad is a beautiful location that has developed into a popular tourist destination. Many people travel there to appreciate the natural beauty. People from other countries, however, often feel lonely and want to have some fun with the call girls. So relax; our escort girls are always there to end your isolation. Because of their high profile, our girls are already skilled at giving foreigners the greatest services possible, which makes for amazing enjoyment.
 
Enjoy the Real Call Girls of Ahmedabad.
 
If you want to have some quality time since you're sick of your regular way of life, book one of our high-end escort females. Many other service providers try to outdo ourAhmedabad escorts agency , but they are unsuccessful since it is difficult to match our quality. Our agency is well-known in Ahmedabad, so if you want to enjoy genuine sex with one of our attractive women book our service right now and experience the excitement that transforms your routine into something to remember. You may contact us by sending a message or by calling our private cellphone number to conveniently book our service. Don't wait to take advantage of our services and explore the gallery of our famous escorts in Ahmedabad. To reserve High Profile Beauty Models Girls in Ahmedabad, give us a call.


Nashik Escorts | Jodhpur Escorts | Ajmer Escorts | Nagpur Escorts | Lucknow Escorts |Patna Escorts | Ranchi Escorts | Kochi Escorts | Darjeeling Escorts | Dehradun Escorts | Pushkar Escorts | Jaipur Escorts | Indore Escorts | Udaipur Escorts | Surat Escorts | Bangalore Escorts | Mumbai Escorts | Kolkata Escorts | Pune Escorts | Chennai Escorts | Madurai Escorts | Pondicherry Escorts

Ahmedabad Escorts | Escorts in Ahmedabad |Ahmedabad Escorts Service | Ahmedabad Independent Escorts | Ahmedabad Escort | Ahmedabad Female Escorts | Call Girls in Ahmedabad | Escort in Ahmedabad | Ahmedabad Call Girls | Ahmedabad Escorts Girls | Escorts Service in Ahmedabad | Escorts Ahmedabad | Russian Ahmedabad Escorts | Ahmedabad Escorts | Escorts in Ahmedabad | Ahmedabad Escorts Service | Ahmedabad Independent Escorts | Ahmedabad Escort | Ahmedabad Female Escorts| Call Girls in Ahmedabad | Escort in Ahmedabad | Ahmedabad Call Girls | Ahmedabad Escorts Girls | Escorts Service in Ahmedabad | Escorts Ahmedabad | Russian Ahmedabad Escorts
 
 
yomitaoberoi88 [45.115.177.xxx] เมื่อ 27/03/2023 15:36
4012
อ้างอิง

Sarab Smith
I believe other website owners should take this site as an example, very clean and amazing style, and has a user-friendly design.

Visit: Best at&t internet plan
 
Sarab Smith [49.36.185.xxx] เมื่อ 27/03/2023 18:34
4013
อ้างอิง

pooja gupta

Thanks for posting such beautiful information About Udaipur escorts read more visit the website

 
 
ลิงค์ที่เกี่ยวข้อง : http://www.onlineprogram.cz/filmy/zlodeji-gentlemani#comment-1776624
pooja gupta [103.176.16.xxx] เมื่อ 27/03/2023 18:37
4014
อ้างอิง

Riva
I must admit that your post is really interesting. I have spent a lot of my spare time reading your content. Thank you a lot! www.drywallcontractorrichmondbc.com
 
Riva [158.62.0.xxx] เมื่อ 27/03/2023 19:55
4015
อ้างอิง

Ashika Soni
Bangalore Escorts are well known for their curved bodies and also have an understanding nature. This is why individuals from afar spend their vacations or pause work to help themselves to women like ours!
Most of our clients are either on a business trip or a trip far from their regular routine. Escorts in Bangalore is the perfect trip spot from all the worldly problems as well as stress and anxiety you hold on your shoulders. Give these sensuous women an opportunity to massage therapy those difficulties away and also aid you have a trouble-free and enjoyable time.

We all need a break from the typical routine of our boring and also dull lives sometimes. Whatever you do, after a period of time, it tends to get a little recurring as well as everyone deserves a break away from it to enjoy the more fundamental Bangalore Call Girls satisfaction that life needs to supply us.

We need to damage away from loneliness and also say yes to new experiences. Especially such experiences that aid you recognize just how individuals forget about the relevance of particular basic satisfaction. our Bangalore Escort are very eager to reveal you these unforgettable and also wonderful experiences.

Pick Out Independent Phone Call Girls In Bangalore
We welcome you to this city and to choose exactly what makes you happy. We are proud to tell you that we have a range of queens prepared for your option. We obtain all type of women in these contemporary times as different requirements of beauty are obtaining more appropriate now. These Bangalore Russian Escorts have a massive appetite for being charmed by whoever decides to hang out with them.
These divas carry a class of their own as well as need you to promote that degree as well as image that they are utilized to seeing. Do not be afraid of trying out brand-new points as our Bangalore Celebrity Escorts have a one-track mind of constantly pleasing you as well as making sure your fantasies are satisfied.

You can ask them concerning their lives and tell them regarding your own. The Indira Nagar Escorts has to use are merely mind-numbing. They can talk for hours if you desire or be silent and also pay attention to you for hrs.

They are quite possibly trained and have the social knowledge of nearly a celeb. They know precisely how to conduct themselves in various scenarios and also situations. That's why they are the most effective Jaya Nagar Escorts as well as they continue to impress you.

The idea is to make you feel comfy and let you have the best time. The time has to do with you as well as you can choose to do what pleases you. kalyan Nagar Escorts
 
Ashika Soni [45.121.2.xxx] เมื่อ 27/03/2023 21:02
4016
อ้างอิง

Purple Kush

Your job is incredible!

Purple Kush

 
ลิงค์ที่เกี่ยวข้อง : http://herbapproach.org/product/purple-kush/
Purple Kush [122.52.176.xxx] เมื่อ 28/03/2023 09:36
4017
อ้างอิง

Surbhi Patel
Golden Chance in Mumbai We look forward to serving you independently in any of the hotel restaurants at affordable and sensual call girls categories.


Mumbai Escorts Services: Mumbai Escorts | Mumbai Call Girls | Mumbai Call Girls Services | Mumbai Escorts Hotels | Mumbai Call Girls Gallery | Mumbai Call Girls Price | Mumbai Call Girls Blog | Mumbai Call Girls Contact |

Mumbai Escorts Locations: 
Andheri Call Girls | Bandra Call Girls | Navi Mumbai Call Girls | Vashi Call Girls | Miraroad Call Girls | Thane Call Girls | Chembur Call Girls | Goregaon Call Girls | Nerul Call Girls | Malad Call Girls | Juhu Call Girls | Sakinaka Call Girls | Kurla Call Girls | Dahisar Call Girls | Powai Call Girls | Borivali Call Girls
 
ลิงค์ที่เกี่ยวข้อง : https://www.mumbaiescortshotel.com
Surbhi Patel [106.222.214.xxx] เมื่อ 28/03/2023 12:43
4018
อ้างอิง

pooja gupta

Do you want best first night experience with sexy girls so never west time just now hire independent Uttam Nagar Escorts girl and women and make night romantic girls have fully experienced and knowing how to complete a young Man desire more visit website:- 

 
 
ลิงค์ที่เกี่ยวข้อง : https://themepalace.com/users/poojagupta06/
pooja gupta [103.176.16.xxx] เมื่อ 28/03/2023 14:21
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :