하이브리드 Ti2AlC 세라믹 소결체의 재료특성 및Micro-EDM 유용성 연구

서지정보

ㆍ발행기관 : 한국분말야금학회 ㆍ수록지정보 : 한국분말야금학회지 / 21권 / 4호
ㆍ저자명 : 정국현, 김광호, 강명창

목차

Abstract
1. 서 론
2. 실험방법
2.1. Ti2AlC 세라믹 소결체의 제조 및 특성평가
2.2. Micro-EDM 장치 및 방법
3. 실험결과 및 고찰
3.1. 하이브리드 Ti2AlC 세라믹 소결체의 XRD Patten
3.2. 하이브리드 Ti2AlC 세라믹 소결체의 미세구조
3.2. 하이브리드 Ti2AlC 세라믹 소결체의 재료물성
3.2. 하이브리드 Ti2AlC 세라믹 소결체의 EDM가공성
4. 결 론
감사의 글
참고문헌

영어 초록

Titanium alloys are extensively used in high-temperature applications due to their excellent high strength andcorrosion resistance properties. However, titanium alloys are problematic because they tend to be extremely difficult-to-cut material. In this paper, the powder synthesis, spark plasma sintering (SPS), bulk material characteristics and machin-ability test of hybrid Ti2AlC ceramic bulk materials were systematically examined. The bulk samples mainly consistedof Ti2AlC materials with density close to theoretical value were synthesized by a SPS method. Random orientation andgood crystallization of the Ti2AlC was observed at 1100℃ for 10 min under SPS sintering conditions. Scanning electronmicroscopy results indicated a homogeneous distribution and nano-laminated structure of Ti2AlC MAX phase. The hard-ness and electrical conductivity of Ti2AlC were higher than that of Ti 6242 alloy at sintering temperature of 1000℃~1100℃. Consequently, the machinability of the hybrid Ti2AlC bulk materials is better than that of the Ti 6242 alloy formicro-EDM process of micro-hole shape workpiece.

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