W-M(M=Cu, Sn, Ni)계 고밀도 복합재료 제조에 관한 기초연구(I)
A Basic Study on the Fabrication of W-M(M=Cu, Sn, Ni) System High Density Composite (I)
장탁순(충남대학교); 홍준희(충남대학교); 이태행(공주대학교); 구자명(공주대학교); 송창빈(공주대학교)
16권 4호, 268~274쪽
초록
For the purpose of obtaining basic information on the development of lead-free materials, a high density composites (a) W-Cu, (b) W-Sn (c)W-Cu-Sn and (d) W-Cu-Ni were fabricated by the P/M method. The particle size of used metal powders were under 325 mesh, inner size of compaction mould was Ø8 ㎜, and compaction pressure was 400 ㎫. A High density composite samples were sintered at a temperature between 140℃ and 1050℃ for 1 hour under Ar atmosphere. The microstructure, phase transformation and physical properties of the sintered samples were investigated. As the results, the highest relative density of 95.86% (10.87 g/㎤) was obtained particularly in the sintered W-Cu-Sn ternary system sample sintered at 450 for 1hr. And, Rockwell hardness (HRB) of 70.0 was obtained in this system.
Abstract
For the purpose of obtaining basic information on the development of lead-free materials, a high density composites (a) W-Cu, (b) W-Sn (c)W-Cu-Sn and (d) W-Cu-Ni were fabricated by the P/M method. The particle size of used metal powders were under 325 mesh, inner size of compaction mould was Ø8 ㎜, and compaction pressure was 400 ㎫. A High density composite samples were sintered at a temperature between 140℃ and 1050℃ for 1 hour under Ar atmosphere. The microstructure, phase transformation and physical properties of the sintered samples were investigated. As the results, the highest relative density of 95.86% (10.87 g/㎤) was obtained particularly in the sintered W-Cu-Sn ternary system sample sintered at 450 for 1hr. And, Rockwell hardness (HRB) of 70.0 was obtained in this system.
- 발행기관:
- 한국분말재료학회
- 분류:
- 금속공학