KR900701683A - 고도의 경도, 내마모성 물질 - Google Patents

고도의 경도, 내마모성 물질

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Publication number
KR900701683A
KR900701683A KR1019900701029A KR900701029A KR900701683A KR 900701683 A KR900701683 A KR 900701683A KR 1019900701029 A KR1019900701029 A KR 1019900701029A KR 900701029 A KR900701029 A KR 900701029A KR 900701683 A KR900701683 A KR 900701683A
Authority
KR
South Korea
Prior art keywords
tungsten
molybdenum
carbon
source
pressure
Prior art date
Application number
KR1019900701029A
Other languages
English (en)
Inventor
엠. 두벤스키 엘렌
이. 팀 에드워드
Original Assignee
리챠드 지. 워터맨
더 다우 케미칼 캄파니
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 리챠드 지. 워터맨, 더 다우 케미칼 캄파니 filed Critical 리챠드 지. 워터맨
Publication of KR900701683A publication Critical patent/KR900701683A/ko

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Abstract

내용 없음

Description

고도의 경도, 내마모성 물질
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 A12O3와 TiC의 합금에 기록된 값과 비교하여 실시예 1과 대조 실시예 A 및 F에 대한 비커즈 가열경도 시험 데이타를 나타낸 그림이다. 제2도는 실시예 1과 텅스텐인 실시예 8 내지 13의 조밀화시킨 물질에 대한 비커즈 경도 및 내마모성 사이의 관계를 나타낸 그림이다. 출발 분말의 중량에 기초한, 각각의 점에 대한 출발 Mo2C함량은 다음과 같다. : A=50중량%, B=20중량%, C= 12중량%, D=6중량%, 및 E=1중량%, 제3도는 실시예 9 내지 13 및 대조 실시예 K 내지 N의 조밀화시킨 물질에 대한 비커즈 경도 및 출발 Mo2C함량 사이의 관계를 나타낸 그림이다.

Claims (36)

  1. 고도의 경도 또는 내구성을 요구하는 제품을 제조하는데 사용하기에 적합한물질로서, Ax와 공급원 B와의 불완전 반응생성물을 포함하며 당해 생성물이 적어도 하나의 화합물 Ax와 적어도 하나의 화합물 ABX(여기서, A 및 B는 티타늄, 지르코늄, 하프늄, 바나듐, 니오븀, 탄탈륨, 크롬, 몰리브덴 및 텅스텐으로 이루어진 그룹으로부터 선택되는 상이한 물질이고, X는 붕소, 탄소, 규소, 및 질소로 이루어진 그룹으로부터 선택된다)를 포함함을 특징으로 하는 물질.
  2. 제1항에 있어서, x가 탄소, 규소 또는 질소인 물질.
  3. 제1항에 있어서, X가 탄소인 물질.
  4. 제2항에 있어서, A가 텅스텐, 하프늄 및 티탄으로 이루어진 그룹으로부터 선택되고 B가 A와는 상이하며 텅스텐, 지르코늄, 바나듐, 크롬 및 몰리브덴으로 이루어진 그룹으로부터 선택되는 물질.
  5. 제1항에 있어서, A가 텅스텐이고 B는 몰리브덴이며 X는 탄소인 물질.
  6. 제1항에 있어서, 잔여량의 공급원 B를 추가로 포함하는 물질.
  7. 제5항에 있어서, 공급원 B가 몰리브덴 서브카바이드(Mo2C)인 물질.
  8. 제1항에 있어서, ABX가 화학양론이 변하며 약 60 내지 약99%의 텅스텐, 약 1 내지 약40%의 몰리브덴 및 약 4 내지 9%의 탄소를 포함하는 텅스텐/탄화몰리브덴 생성물인 물질.
  9. 제8항에 있어서, ABX가 약 77 내지 약 89%의 텅스텐, 약5 내지 약 16%의 몰리브덴 및 약 5 내지 약 8%의 탄소를 포함하는 물질.
  10. 제5항에 있어서, 1㎏의 하중을 사용하여 측정한 비커즈 경도가 적어도 약2200㎏/㎟이고 ASTM G65법으로 측정한 내마모성이 적어도 약 500㎜-3인 물질.
  11. 제10항에 있어서, 1㎏의 하중을 사용하여 측정한 비커즈 경도가 적어도 약 2400㎏/㎟인 물질.
  12. 제1항에 있어서, 밀도가 이론 밀도의 약90% 이상인 물질.
  13. 제4항에 있어서, 입자 크기가 약 5μ 미만인 물질.
  14. 제3항에 있어서, A가 텅스텐이고 B가 크롬이며 X가 탄소인 물질.
  15. 제14항에 있어서, 공급원 B가 탄화크롬인 물질.
  16. 각각 융점이 있는 AX, 공급원B 및 임의로X, AX 및 공급원 B의 분말화 혼합물을 AX와 공급원 B 사이의 분완전한 반응의 거의 완전히 조밀하고 강화된 생성물 여기서, 당해 생성물은 입자가 최소로 성장하고 적어도 하나의 화합물 AX와 적어도 하나의 화합물 ABX[여기서, A 및 B는 티타늄, 지르코늄, 하프늄, 바나듐, 니오븀, 탄탈륨, 크롬, 몰리브덴 및 텅스텐으로 이루어진 그룹으로부터 선택되는 상이한 물질이고 X는 붕소, 탄소, 규소및 질소로 이루어진 그룹으로부터 선택된다]을 생성하기에 충분한 온도(여기서, 온도는 AX와 공급원 B의 융점보다 약 3/4 정도 미만이다) 및 압력 조건으로 처리함을 특징으로 하여 고도의 경도 또는 내구성을 요구하는 제품을 제조하는데 사용하기에 적합한 물질을 제조하는 방법.
  17. 제16항에 있어서, 조밀화하기 전에 혼합물을 그린웨어 성형품으로 전환시키는중간단계를 추가로 포함하는 방법
  18. 제16항에 있어서, A가 텅스텐, 하프늄 및 티타늄으로 이루어진 그룹으로부터 선택되고 B가 텅스텐, 지르코늄, 바나듐, 크롬 및 몰리브덴으로 이루어진 그룹으로부터 선택되는 상이한 물질이고 X가 탄소, 규소 또는 질소인 방법.
  19. 제16항에 있어서, A가 텅스텐이고 B는 몰리브덴이며 X는 탄소인 방법.
  20. 제16항에 있어서, A가 텅스텐이고 B는 크롬이며 X는 탄소인 방법.
  21. 제16항에 있어서, 강화 생성물이 잔여량의 공급원 B를 추가로 포함하는 방법.
  22. 제19항에 있어서, 공급원 B가 몰리브덴 서브카바이드(MO2C)인 방법.
  23. 제19항에 있어서, 강화 생성물이 벌크 조성물 중량을 기준으로 하여 약65 내지 약93%의 텅스텐, 약 0.9 내지 약28%의 몰리브덴 및 약4 내지 약8%의 탄소를 포함하는 방법.
  24. 제19항에 있어서, 강화 생성물이 1㎏의 하중을 사용하여 측정한 비커즈 경도가 적어도 약2200㎏/㎟이고 ASTM G65법으로 측정한 내마모성이 적어도 약500mm-3인 방법.
  25. 제24항에 있어서, 1㎏의 하중을 사용하여 측정한 비커즈 경도가 적어도 약 2400㎏/㎟인 방법.
  26. 제19항에 있어서, 조밀화되기 전에 혼합물이 약 1600℃ 미만의 온도로 가열되는 방법.
  27. 제26항에 있어서, 조밀화 압력이 신속한 전방향 압축에 의해 공급되는 방법.
  28. 제27항에 있어서, 압력이 약 1시간 미만 동안 적용되는 방법.
  29. 27항에 있어서, 압력이 약30분 미만 동안 적용되는 방법.
  30. 제27항에 있어서, 압력이 약 1분 미만 동안 적용되는 방법.
  31. 제28항에 있어서, 압력이 약 10초 미만 동안 적용되는 방법.
  32. 제16항에 있어서, 열등방성 압력을 사용하여 분말화 혼합물에 온도와 압력을 공급하는 방법.
  33. 제32항에 있어서, 압력이 약 1시간 미만 동안 적용되는 방법.
  34. 제32항에 있어서, 온도가 약 1300 내지 약 1450℃의 범위내인 방법.
  35. 제17항에 있어서, 강화 생성물 B의 입자 크기가 약 10μ 미만인 방법.
  36. 제1항의 물질로부터 노즐을 재조함을 포함하는, 워터제트 커팅용도로 사용할 수 있는 개선된 노즐.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900701029A 1988-09-20 1989-09-20 고도의 경도, 내마모성 물질 KR900701683A (ko)

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