สถิติ
เปิดเมื่อ28/01/2015
อัพเดท19/06/2024
ผู้เข้าชม1835847
แสดงหน้า2306964
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 567651 | 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 :
4099
อ้างอิง

ทดลองเล่นสล็อต pg ซื้อฟีเจอร์
 
ทดลองเล่นสล็อต pg ซื้อฟีเจอร์ [110.78.75.xxx] เมื่อ 2/04/2023 21:56
4100
อ้างอิง

สล็อตทดลองเล่นฟรี pg
 
สล็อตทดลองเล่นฟรี pg [110.78.75.xxx] เมื่อ 2/04/2023 21:56
4101
อ้างอิง

ทดลองเล่นสล็อต jili ไม่ เด้ง
 
ทดลองเล่นสล็อต jili ไม่ เด้ง [110.78.75.xxx] เมื่อ 2/04/2023 21:57
4102
อ้างอิง

สล็อตทดลองเล่นฟรี pg
 
สล็อตทดลองเล่นฟรี pg [110.78.75.xxx] เมื่อ 2/04/2023 21:57
4103
อ้างอิง

pretty2023
Find the real place for great fantasy desires with VIP Escorts in Bangalore from pretty Bangalore escorts agency
VIP Escorts service in Bangalore
Luxurious people are frequently seen towards for the right girlfriend or woman to date in the area he lives or is present.  We, the pretty VIP escorts in Bangalore are serving you at any time safely through various facilities with highly secured hot spots in Bangalore.  This is the best place to enjoy your fee hours to look the delightful as well as horny nights with an astonishing and sexy female VIP best escort in Bangalore  
We are the most lovable adult partner for among elites of the world visitors of Bangalore and india in the way we serve the Luxurious pretty Bangalore VIP Escorts Services  at best economical values to get into the loop of heavenly pleasures will make sure to get immersive erotic experience.
Professional VIP Models for affordable value
When you hire a top class Bangalore VIP escort  glamorous model with respect to your fantasy intensions that want to make true without any interruption at any grand locations  from our VIP Escorts services in Bangalore , She will ask all your fantasies in advance, so we will make sure you get the extreme joy and full satisfaction experience to make your happy ending moment.             
We give top class Professional VIP Models such as Air-hostess, Russian, rich call girls, top bangalore VIP escorts, Housewife, College girls which fits to your fantasies.
Stunning and charming to enrich your parties
They are populous because of their stunning look, best fashionable attitude of delivering the entertainment and the way they approach their kind speeches to the clients. These Bangalore VIP escorts service  models are from a elite family and join an escort agency to make their life some exciting  adventure in the world with the most socially valued personalities.
Also, they are rich girl or women in society, and we bring proud to have assisted with these lovely high end escorts. Our Pretty Bangalore VIP call girls escort are a perfect mix of beauty and talent.
Get incredible experiences in your lifetime
You will get unbelievable erotic pleasures on the bed by booking VIP Escort Bangalore girl for one night stand. High profile VIP Escorts in bangalore  know how to satisfy their clients and having bold erotic attitudes to make them joy. They can accompany you to bed and sleep with you alone to provide you girlfriend and female companionship when you have lonely at night.
Most Trusted VIP Escort in Bangalore for your Safety
We have been safer, affordable and believed service provider for past decades in India, so we know how to serve the lust and sex desire of men. It is our obligation to provide the exotic luxuries VIP escorts service Bangalore at your budget prices.
In this Bangalore, Pretty VIP call girl in Bangalore is the only easiest source where you can meet a glorified escort girl to enjoy girlfriend experience with her.
Get an immersive hot experience like never before in your lifetime through a highly protected VIP escorts Bangalore, we have those professional services for you and you just have to ready yourself to get into that comfort zone.
 High class call girls in Bangalore  top call girls in Bangalore high end call girls in Bangalore Top escorts in bangalore  Bangalore escorts models  best escorts in bangalore   genuine escorts in bangalore   escort in Bangalore  Bangalore escort  call girls in bellandur Bangalore   call girls in ITPL Bangalore  call girls in UB city Bangalore  call girls in Marathahalli Bangalore   call girls in Brigade road Bangalore   call girls in BTM Layout Bangalore   call girls in Banashankari Bangalore  call girls in domlur Bangalore  call girls in MG road Bangalore  call girls in nandi hills Bangalore  call girls in Rajaji nagar Bangalore  call girls in indira nagar Bangalore  call girls in malleswaram Bangalore  Escorts service in Majestic Bangalore  call girls in cantonment Bangalore  call girls in Brigade Road Bangalore  call girls in WhiteField Bangalore  call girls in Banaswadi Bangalore   call girls in jp nagar bangalore   call girls in jaya nagar bangalore   High Profile Escorts in Bangalore   Air-Hostess Escorts in Bangalore  call girls service in Bangalore  Celebrity escorts  in Bangalore  Massage service in Bangalore  College girls escorts in Bangalore
 Rich Call girls in Bangalore   call girls model in bangalore  House wife escorts in Bangalore Girlfriend service in Bangalore  party girls in Bangalore  dating girls in bangalore  cheap and best escorts in Bangalore  affordable escorts in Bangalore  escorts girl in bangalore  High profile call girls in bangalore  cheap escorts in bangalore  Escorts Agency in Bangalore  Bangalore escorts agency  best escort in Bangalore  Bangalore escort   escorts in bellandur Bangalore  escorts in ITPL Bangalore  escorts in UB city Bangalore  escorts in Marathahalli Bangalore  escorts in Brigade road Bangalore  escorts in BTM Layout Bangalore  escorts in Banashankari Bangalore  escorts in domlur Bangalore  escorts  in MG road Bangalore  escorts in nandi hills Bangalore  escorts in Rajaji nagar Bangalore  escorts in indira nagar Bangalore  escorts in malleswaram Bangalore  call girls in Majestic Bangalore  escorts in cantonment Bangalore  escorts in Brigade Road Bangalore  escorts in WhiteField Bangalore   escorts in Banaswadi Bangalore  escorts in jp nagar bangalore  escorts in jaya nagar bangalore  Bangalore high profile escorts   Bangalore Air-Hostess Escorts  call girl service in Bangalore   Celebrity escorts  in Bangalore   sex massage service in Bangalore  College girl escort in Bangalore
For Escorts Services in Mumbai Kindly Visit the Following links:
Escorts in Mumbai      
Escorts services in Mumbai
call girl in Mumbai
Russian Escorts in Mumbai 
VIP Escorts in Mumbai,
Air hostess Escorts in mumbai
Celebrity escorts in mumbai
 
pretty2023 [106.220.232.xxx] เมื่อ 2/04/2023 21:58
4104
อ้างอิง

Relaxing Spa
Very Good!! Really Love it..
<a href='https://relaxingspa.com.pk/'>Massage Center in Islamabad</a>
<a href='https://relaxingspa.com.pk/about/'>Spa in Islamabad</a>
<a href='https://relaxingspa.com.pk/'>Massage Services in Islamabad</a>
<a href='https://relaxingspa.com.pk/about/'>Massage Centre Islamabad</a>
<a href='https://relaxingspa.com.pk/'>Massage in Islamabad</a>
<a href='https://relaxingspa.com.pk/project-details/'>Islamabad Massage Center</a>
<a href='https://relaxingspa.com.pk/'>Relaxing Spa</a>
 
ลิงค์ที่เกี่ยวข้อง : https://relaxingspa.com.pk/
Relaxing Spa [103.162.137.xxx] เมื่อ 3/04/2023 00:52
4105
อ้างอิง

Best Call Girls in Lahore

Call Girls Lahore is one of the best escort services in Lahore. We are offering our services to make your life easier and better. Our call girls in Lahore will be at your service any time you want. We can provide you with models, housewives and college students who will help you forget about all the problems and difficulties for a while. If you are looking for an unforgettable evening with a charming lady, Call Girls Lahore is what you need!

 
ลิงค์ที่เกี่ยวข้อง : https://callgirlslahore.net/
Best Call Girls in Lahore [119.73.115.xxx] เมื่อ 3/04/2023 07:42
4106
อ้างอิง

Virtual birthday cards

Looking for the perfect birthday card? Look no further! Our selection of Free Birthday cards is unbeatable, with options that are sure to impress. From funny to sentimental, we have something for everyone

 
 
ลิงค์ที่เกี่ยวข้อง : https://sendwishonline.com/en/group-cards/happy-birthday-cards
Virtual birthday cards [223.178.212.xxx] เมื่อ 3/04/2023 13:04
4107
อ้างอิง

Chennai Beauties
Are you looking for a special side to your Chennai journey? Simply exactly how about a strong day that will make you neglect all your concerns as well as zing up your life? Shows up wonderful. You should be asking yourself precisely how to end up with such a remarkable date. Well, not to fret as Outcall Chennai Escorts are right here to make points more thrilling for you. These hot babes are appealing to the T. They are unbelievably stunning yet these terrific ladies are more than the regular absurd bombshells. They are informed, well mannered and also truly cutting-edge. Actually, they are the superb arm sweet for any type of sort of Chennai Escort profile occasion.

Then, the Chennai Call Girls are continuously distressed to please their clients. Do not stress if it's your extremely very first time with the companion. Merely be gentle as well as considerate. These Chennai Russian Escorts girls are truly pleasant as well as will definitely attempt their finest to make you really feel comfy. If they have really settled on your defined solutions, they will absolutely keep their word. Like actual professionals, Chennai Cheap escorts do not damage their assurances.

Among the significant factors behind the premium popularity of T Nagar Escorts is that they make amazing pals. Whether you desire somebody to chat with in your single time or seeking a racey action in between the sheets or preparing an unique BDSM- these attractive Harrington Escorts girls is a beauty all techniques. They will definitely make love to you much like your girlfriend to ensure that you feel that specific same warm and also excitement.

Finest ChennaiBeauties Chennai Escorts Service Firm

Anna Nagar Escorts Chennai is a recognized leader in the field of buddy options. Our women are a model of beauty, design, style, education, education and learning and discovering, improved good manners, and elegance. We, like most of our consumers, are liked as well as appreciated by Kotturpuram Escorts ladies that are able not simply to end up being an 'device' for a politician or local business owner yet going better.
 
Chennai Beauties [45.121.2.xxx] เมื่อ 3/04/2023 15:44
4108
อ้างอิง

Codella

When we speak about Bangalore Escorts, then our escort firm begins top as we likewise offer premium escorts classification as a result of their well-educated background, healthy and balanced body, good nature, and also good clothing feeling. Every one of the costs Bangalore Escort working for our escort firm are supplied just for those who require to have some additional degree of satisfaction while sex, those that are abundant as well as have elite criteria. All the women VIP companions rates range a little bit greater as compared to other companions as a result of the quality service they provide. All the companions are normally charming, sophisticated as well as open minded women who will certainly spend top quality time with you. Escorts service Bangalore come at pre attested booking just due to their dynamic schedule as some are versions, very models for a much shorter size and over night remain with clients in either lodging space or at a lavish private area. Adult stuff covers all hot stuff like-- foreplay, intercourse, act play, penis massages and sex in numerous designs. Our ladies furthermore offer exterior services reason for detailed request in costs escorts, so you can contract your decision of VIP escort for outdoors stick with you.

Each and every leading course call girls in Bangalore that helps our company is readily available at affordable rates. We additionally supply our companion services in various other cities too as well as to people travelling from various other cities to Bangalore likewise. Most of us know that Grownup enjoyment is a needs to in life to end the disappointed sexual life. On the off possibility that you require to head to a bar, disco or bear bar or to whatever one more spot with our Bangalore Russian Escorts so indeed, they are prepared for it and all young ladies use the dress as per your very own demands.

I can wager that you won't get this kind of administrations at some other Cheap Escorts in Bangalore which all you are getting here with us. So obtain your telephone as well as make a call to us as well as we will offer you precisely coordinated female according to your demand and desire.

To book any of our Brigade Road Escorts Bangalore quickly, just give us a call on our mobile number and also we assure you that we will certainly send all the present images of our available women to your smartphone to ensure that you reach select what you enjoy the most. Email booking is also an offered alternative for those that intend to get in contact with us via e-mail. We just approve cash money at the time we deliver our Electronic City Escorts call girl. So, please bear in mind to prepare the cash before a Mg Road Escorts Bangalore is scheduled by you.

 
Codella [45.121.2.xxx] เมื่อ 3/04/2023 16:14
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :