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公开(公告)号：EP1631695A1
公开(公告)日：2006-03-08
申请号：EP04752555.5
申请日：2004-05-18
发明人： BANGARU, Narasimha-Rao, Venkata , CHUN, ChangMin , JIN, Hyun-Woo , KOO, Jayoung , PETERSON, John, Roger , ANTRAM, Robert, Lee , FOWLER, Christopher, John
IPC分类号： C22C29/12
CPC分类号： C22C29/12 , C22C32/0015 , C22C32/0026 , C23C30/00 , Y10T428/12007
摘要： A cermet composition and method for its manufacture represented by the formula (PQ) (RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein, P is a metal selected from the group consisting of Al, Si, Mg, Ca, Y, Fe, Mn, Group IV, Group V, Group VI elements, and mixtures thereof, Q is oxide, R is a base metal selected from the group consisting of Fe, Ni Co, Mn and mixtures thereof, S consists essentially of at least one element selected from Cr, Al and Si and at least one reactive wetting element selected from the group consisting of Ti, Zr, Hf, Ta, Sc, Y, La, and Ce.
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公开(公告)号：EP1456431A1
公开(公告)日：2004-09-15
申请号：EP02791401.9
申请日：2002-12-10
CPC分类号： C21D1/04 , C21D10/00 , C21D2201/00 , C22C38/04 , C22C38/08 , C22C38/105 , C22F3/00
摘要： A method for refining the grain size of alloys which undergo ferromagnetic to paramagnetic phase transformation and an alloy produced therefrom. By subjecting the alloy to a timed application of a strong magnetic field, the temperature of phase boundaries can be shifted enabling phase transformations at lower temperatures.
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13.发明公开BIMODAL AND MULTIMODAL DENSE BORIDE CERMETS WITH SUPERIOR EROSION PERFORMANCE 审中-公开凭借优越的侵蚀效率BI模态和多密度硼化物陶瓷
公开(公告)号：EP1974067A1
公开(公告)日：2008-10-01
申请号：EP06827805.0
申请日：2006-11-14
发明人： CHUN, ChangMin , BANGARU, Narasimha-Rao , THIRUMALAI, Neeraj S. , JIN, Hyun-Woo , KOO, Jayoung , PETERSON, John R. , ANTRAM, Robert L. , FOWLER, Christopher J. , LENDVAI-LINTNER, Emery B.
CPC分类号： C22C29/14 , B22F1/0014 , B22F2009/043 , B22F2998/10 , B22F2999/00 , Y10T428/12007 , B22F1/0003 , B22F3/02 , B22F3/1021 , B22F3/1035 , B22F9/04
摘要： Multimodal cermet compositions comprise a multimodal grit distribution of the ceramic phase. The compositions include a) a ceramic phase and b) a metal binder phase, wherein the ceramic phase is a metal boride with a multimodal distribution of particles, wherein a metal is a Group IV, V, or VI metal, and wherein the metal binder phase comprises (i) Fe, Ni, Co or Mn and (ii) Cr, Al, Si, Y or Ti. The method of making multimodal boride cermets includes mixing multimodal ceramic phase particles, pressing the particle, liquid phase sintering of the compresses mixture at elevated temperatures, and finally cooling the multimodal cermet composition. Advantages of the multimodal cermets are high packing density, high fracture toughness and improved erosion resistance at up to 100 deg C. The multimodal cermets are suitable in high temperature erosion / corrosion chemical and petroleum environments.
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公开(公告)号：EP1641949A2
公开(公告)日：2006-04-05
申请号：EP04752551.4
申请日：2004-05-18
发明人： BANGARU, Narasimha-Rao, Venkata , CHUN, ChangMin , THIRUMALAI, Neeraj, Srinivas , JIN, Hyun-Woo , PETERSON, John, Roger , ANTRAM, Robert, Lee , FOWLER, Christopher, John , KOO, Jayoung
IPC分类号： C22C1/05
CPC分类号： C22C29/14 , C23C24/08 , C23C30/00 , Y10T428/25 , Y10T428/31678
摘要： A cermet composition represented by the formula (PQ)(RS) comprising : a ceramic phase (PQ) and binder phase (RS) wherein, P is at least one metal selected from the group consisting of Group IV, Group V, Group VI elements, Q is boride, R is selected from the group consisting of Fe, Ni, Co, Mn and mixtures thereof, S comprises at least one element selected from Cr, Al, Si and Y.
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公开(公告)号：EP1456431B1
公开(公告)日：2006-03-22
申请号：EP02791401.9
申请日：2002-12-10
CPC分类号： C21D1/04 , C21D10/00 , C21D2201/00 , C22C38/04 , C22C38/08 , C22C38/105 , C22F3/00
摘要： A method for refining the grain size of alloys which undergo ferromagnetic to paramagnetic phase transformation and an alloy produced therefrom. By subjecting the alloy to a timed application of a strong magnetic field, the temperature of phase boundaries can be shifted enabling phase transformations at lower temperatures.
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公开(公告)号：EP1631693A1
公开(公告)日：2006-03-08
申请号：EP04752552.2
申请日：2004-05-18
发明人： CHUN, ChangMin , BANGARU, Narasimha-Rao, Venkata , JIN, Hyun-Woo , KOO, Jayoung , PETERSON, John, Roger , ANTRAM, Robert, Lee , FOWLER, Christopher, John
IPC分类号： C22C29/00
CPC分类号： B04C5/085 , C22C29/16 , C22C32/0068 , C23C30/00
摘要： The invention includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein, P is a metal selected from the group consisting of Si, Mn, Fe, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and mixtures thereof, Q is nitride, R is a metal selected from the group consisting of Fe, Ni, Co, Mn and mixtures thereof, S consists essentially of at least one element selected from Cr, Al, Si, and Y, and at least one reactive wetting aliovalent element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and mixtures thereof.
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