Simultaneously synthesis and sintering of a nanostructured Ti-Al2O3 composite by pulsed current activated heating
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Nanopowders of TiO and Al were fabricated using high energy ball milling. Dense nanostuctured 3Ti-Al2O3 composite wassimultaneously synthesized and sintered by pulsed current activated heating within 2 min in one step from mechanicallyactivated powders of 3TiO and 2Al. The advantage of this process is that it allows very quick densification to near theoreticaldensity and prohibition of grain growth in nanostructured materials. Highly dense 3Ti-Al2O3 with relative density of up to99.9% was produced under simultaneous application of a 80 MPa pressure and the pulsed current. The average hardness andfracture toughness values of the composite were 1439 kg/mm2and 7 MPa • m1/2, respectively.
Abstract
Nanopowders of TiO and Al were fabricated using high energy ball milling. Dense nanostuctured 3Ti-Al2O3 composite wassimultaneously synthesized and sintered by pulsed current activated heating within 2 min in one step from mechanicallyactivated powders of 3TiO and 2Al. The advantage of this process is that it allows very quick densification to near theoreticaldensity and prohibition of grain growth in nanostructured materials. Highly dense 3Ti-Al2O3 with relative density of up to99.9% was produced under simultaneous application of a 80 MPa pressure and the pulsed current. The average hardness andfracture toughness values of the composite were 1439 kg/mm2and 7 MPa • m1/2, respectively.
참고문헌 (22)
- M. N. Rahaman, , J. Am. Ceram. Soc, 90, pp.1965~1988 (2007)
- D. Hannouche, , Clin. Orthop. Relat. Res, 430, pp.62~71 (2005)
- R. Nizard, , J. Bone Joint Surg. Br, 87, pp.755~758 (2005)
- L. Sedel, , Semin. Arthroplasty, 9, pp.123~134 (1998)
- M. Akagi, , J. Bone Joint Surg. Am, 82-A, pp.1626~1633 (2000)
- H. Oonishi, , Clin. Orthop. Relat. Res, 282, pp.95~104 (1992)
- G. P. Kelkar, , J. Am. Ceram. Soc, 78, pp.572~576 (1995)
- Hyoung-Gon Jo, "Simultaneous synthesis and consolidation of nano-structured WSi2-NbSi2 composite by pulsed current activated heating and its mechanical properties", Journal of Ceramic Processing Research, 15(6), pp.371~375 (2014), 세라믹공정연구센터[DOI]
- 손인진, "펄스전류 활성 소결에 관한 연구", 대한금속·재료학회지, 52(8), pp.573~580 (2014), 대한금속·재료학회
- 손인진, "나노구조 TiC-FeAl 초경재료의 기계적 성질", 대한금속·재료학회지, 53(7), pp.474~479 (2015), 대한금속·재료학회[DOI]
- 강현수, "나노구조 MgAl2O4-Mg3Al2Si3O12 복합재료 합성과 동시 소결 및 기계적 성질", 대한금속·재료학회지, 52(10), pp.777~782 (2014), 대한금속·재료학회[DOI]
- 권소망, "나노구조의 Ti-TiC 복합재료 소결 및 기계적 성질", 대한금속·재료학회지, 53(8), pp.555~562 (2015), 대한금속·재료학회[DOI]
- Z. Fang, , Int. J. Refract. Met. Hard Mater, 13, pp.297~303 (1995)
- A. I. Y. Tok, , Mater. Sci. Eng. A, 383, pp.229~234 (2004)
- 강보람, "Mechanical Properties and Rapid Low-temperature Consolidation of Nanocrystalline Cu-ZrO2 Composites by Pulsed Current Activated Heating", Metals and Materials International, 21(4), pp.698~703 (2015), 대한금속·재료학회[DOI]
- 손인진, "Pulsed Current Activated Synthesis and Rapid Consolidation of a Nanostructured Mg2Al4Si5O18 and Its Mechanical Properties", Metals and Materials International, 21(2), pp.345~349 (2015), 대한금속·재료학회[DOI]
- 강보람, "펄스전류활성 가열에 의한 나노구조의 4Cr-3ZrO2 복합재료 급속소결과 특성", 대한금속·재료학회지, 53(5), pp.320~325 (2015), 대한금속·재료학회[DOI]
- 손인진, "Mechanochemical Synthesis and Rapid Consolidation of Binderless Nanostructured (Ti,V)C by Pulsed Current Activated Heating and Its Mechanical Properties", 대한금속·재료학회지, 52(5), pp.343~346 (2014), 대한금속·재료학회
- C.Suryanarayana, "X-ray Diffraction A Practical Approach" (1998), Plenum Press
- G. R. Anstis, , J. Am. Ceram. Soc, 64, pp.533~538 (1981)
- W. G. Fahrenholtz, , J. Am. Ceram. Soc, 83, pp.1279~1280 (2000)