• 제목/요약/키워드: Ti powder

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고온자전합성법으로 제조된 TiNi 다공체의 미세구조와 기계적 특성에 미치는 점화온도의 영향 (Effect of Ignition Temperature on the Microstructure and the Mechanical Properties of Porous TiNi Body Produced by Self-propagation High-temperature Synthesis)

  • 이승해;강지훈;김지순;권영순
    • 한국분말야금학회:학술대회논문집
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    • 한국분말야금학회 1999년도 추계학술강연 및 발표대회 강연 및 발표논문 초록집
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    • pp.6-7
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    • 1999

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하이브리드 Ti2AlC 세라믹 소결체의 재료특성 및 Micro-EDM 유용성 연구 (Micro-EDM Feasibility and Material Properties of Hybrid Ti2AlC Ceramic Bulk Materials)

  • 정국현;김광호;강명창
    • 한국분말재료학회지
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    • 제21권4호
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    • pp.301-306
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    • 2014

  • Titanium alloys are extensively used in high-temperature applications due to their excellent high strength and corrosion 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 machinability test of hybrid $Ti_2AlC$ ceramic bulk materials were systematically examined. The bulk samples mainly consisted of $Ti_2AlC$ materials with density close to theoretical value were synthesized by a SPS method. Random orientation and good crystallization of the $Ti_2AlC$ was observed at $1100^{\circ}C$ for 10 min under SPS sintering conditions. Scanning electron microscopy results indicated a homogeneous distribution and nano-laminated structure of $Ti_2AlC$ MAX phase. The hardness and electrical conductivity of $Ti_2AlC$ were higher than that of Ti 6242 alloy at sintering temperature of $1000^{\circ}C{\sim}1100^{\circ}C$. Consequently, the machinability of the hybrid $Ti_2AlC$ bulk materials is better than that of the Ti 6242 alloy for micro-EDM process of micro-hole shape workpiece.

  • https://doi.org/10.4150/KPMI.2014.21.4.301 인용 PDF KSCI