公开(公告)号：WO2011011606A3

公开(公告)日：2011-04-28

申请号：PCT/US2010042912

申请日：2010-07-22

Applicant: SAINT GOBAIN CERAMICS ,  PUJARI VIMAL K ,  HENNESSEY JAMES T ,  REILLY CHRISTOPHER J

Inventor： PUJARI VIMAL K ,  HENNESSEY JAMES T ,  REILLY CHRISTOPHER J

IPC: C04B35/563 ,  C01B31/36 ,  C04B35/622 ,  C04B35/634 ,  C04B35/64

CPC classification number: C04B35/6264 ,  B82Y30/00 ,  C01B32/956 ,  C04B35/563 ,  C04B35/62605 ,  C04B35/6261 ,  C04B2235/3834 ,  C04B2235/3843 ,  C04B2235/3895 ,  C04B2235/422 ,  C04B2235/424 ,  C04B2235/425 ,  C04B2235/48 ,  C04B2235/483 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/5454 ,  C04B2235/608 ,  C04B2235/6581 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/96

Abstract: A method of forming a sintered boron carbide body includes washing boron carbide powder with essentially pure water at an elevated temperature to generate low oxygen boron carbide powder, mixing a sintering aid and a pressing aid with the low oxygen boron carbide powder to form a green mixture, and shaping the green mixture into a green boron carbide body. The method can include mixing titanium carbide powder having an average particle diameter in a range of between about 5 nm and about 100 nm with the low oxygen boron carbide powder. The method can further include sintering the green boron carbide body, and hot isostatic pressing the sintered body, to a density greater than about 98.5% of the theoretical density (TD) of boron carbide. Alternatively, the method can include sintering the shaped boron carbide green body at a temperature greater than about 2,200 0C, to thereby form a eutectic liquid solid solution of B4C/SiC, forming a sintered boron carbide body with a density greater than about 98% TD.

Abstract translation: 一种形成烧结碳化硼本体的方法包括在升高的温度下用基本纯净的水洗涤碳化硼粉末以生成低氧碳化硼粉末，将烧结助剂和压制助剂与低碳氧化硼粉末混合以形成生绿混合物 ，并将绿色混合物成形为绿色碳化硼体。 该方法可以包括将平均颗粒直径在约5nm和约100nm之间的碳化钛粉末与低氧碳化硼粉末混合。 该方法可以进一步包括烧结未烧结的碳化硼本体，并且热等静压烧结体，至大于碳化硼的理论密度（TD）的大约98.5％的密度。 或者，该方法可以包括在大于约2200℃的温度下烧结成形的碳化硼生坯体，从而形成B 4 C / SiC的共晶液体固溶体，形成密度大于约98％TD的烧结碳化硼体 。

公开(公告)号：WO2009020635A2

公开(公告)日：2009-02-12

申请号：PCT/US2008009484

申请日：2008-08-07

Applicant: SAINT GOBAIN CERAMICS ,  PUJARI VIMAL K ,  HENNESSEY JAMES T ,  COLLINS WILLIAM T

Inventor： PUJARI VIMAL K ,  HENNESSEY JAMES T ,  COLLINS WILLIAM T

IPC: C04B35/563

CPC classification number: C04B35/563 ,  C04B35/62605 ,  C04B35/6261 ,  C04B35/6264 ,  C04B35/62655 ,  C04B2235/3826 ,  C04B2235/422 ,  C04B2235/48 ,  C04B2235/5409 ,  C04B2235/5445 ,  C04B2235/604 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/723 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/96

Abstract: In a method of preparing a boron carbide material, boron carbide powder is washed with essentially pure water at an elevated temperature to generate washed boron carbide powder. The washed boron carbide powder is combined with a sintering aid. The mixture of the boron carbide powder and the sintering aid is pressed to form a shaped material, and the shaped material is sintered. A sintered boron carbide material comprises a boron carbide component that includes boron carbide, elemental carbon, and not more than about 0.6 wt% of oxygen on the basis of the total weight of the boron carbide component. The sintered boron carbide material has a density of at least about 99% of the theoretical density. Another sintered boron carbide material comprises a boron carbide component that includes boron carbide, silicon carbide, elemental carbon, and not more than about 0.3 wt% oxygen on the basis of the total weight of the boron carbide component, and has a density of at least about 97% of the theoretical density.

Abstract translation: 在制备碳化硼材料的方法中，在升高的温度下用基本纯净的水洗涤碳化硼粉末以产生洗过的碳化硼粉末。 洗过的碳化硼粉末与烧结助剂结合。 压制碳化硼粉末和烧结助剂的混合物以形成成形材料，并将成形材料烧结。 烧结碳化硼材料包含碳化硼组分，所述碳化硼组分包含碳化硼，元素碳和基于碳化硼组分的总重量计不超过约0.6重量％的氧。 烧结的碳化硼材料具有至少约理论密度的99％的密度。 另一种烧结碳化硼材料包含碳化硼组分，该碳化硼组分包含碳化硼，碳化硅，元素碳和基于碳化硼组分的总重量计不超过约0.3重量％的氧，并且具有至少 约为理论密度的97％。

公开(公告)号：WO2009020635A3

公开(公告)日：2009-11-12

申请号：PCT/US2008009484

申请日：2008-08-07

Applicant: SAINT GOBAIN CERAMICS ,  PUJARI VIMAL K ,  HENNESSEY JAMES T ,  COLLINS WILLIAM T

Inventor： PUJARI VIMAL K ,  HENNESSEY JAMES T ,  COLLINS WILLIAM T

IPC: C04B35/563 ,  C04B35/626 ,  C04B35/634 ,  C04B35/64

CPC classification number: C04B35/563 ,  C04B35/62605 ,  C04B35/6261 ,  C04B35/6264 ,  C04B35/62655 ,  C04B2235/3826 ,  C04B2235/422 ,  C04B2235/48 ,  C04B2235/5409 ,  C04B2235/5445 ,  C04B2235/604 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/723 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/96

Abstract: In a method of preparing a boron carbide material, boron carbide powder is washed with essentially pure water at an elevated temperature to generate washed boron carbide powder. The washed boron carbide powder is combined with a sintering aid. The mixture of the boron carbide powder and the sintering aid is pressed to form a shaped material, and the shaped material is sintered. A sintered boron carbide material comprises a boron carbide component that includes boron carbide, elemental carbon, and not more than about 0.6 wt% of oxygen on the basis of the total weight of the boron carbide component. The sintered boron carbide material has a density of at least about 99% of the theoretical density. Another sintered boron carbide material comprises a boron carbide component that includes boron carbide, silicon carbide, elemental carbon, and not more than about 0.3 wt% oxygen on the basis of the total weight of the boron carbide component, and has a density of at least about 97% of the theoretical density.

公开(公告)号：WO2011011603A3

公开(公告)日：2011-04-28

申请号：PCT/US2010042908

申请日：2010-07-22

Applicant: SAINT GOBAIN CERAMICS ,  PUJARI VIMAL K ,  HENNESSEY JAMES T

Inventor： PUJARI VIMAL K ,  HENNESSEY JAMES T

IPC: C03C17/02 ,  C04B35/565 ,  C04B35/575 ,  C04B35/64

CPC classification number: C04B35/5755 ,  C04B35/63476 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3232 ,  C04B2235/3821 ,  C04B2235/383 ,  C04B2235/3834 ,  C04B2235/421 ,  C04B2235/422 ,  C04B2235/483 ,  C04B2235/5409 ,  C04B2235/5445 ,  C04B2235/668 ,  C04B2235/762 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/96

Abstract: A method of forming a silicon carbide sintered body includes mixing silicon carbide powder with a boron additive and carbon to form a green mixture and shaping the green mixture into a green body, and coating the green body with boron nitride. The method further includes glass encapsulating the green body and hot isostatic pressing the glass encapsulated green body at a temperature in a range of between about 1900 °C and about 2400 °C for a time period in a range of between about one hour and about three hours, to thereby form a silicon carbide sintered body having a density at least 97% of the theoretical density of silicon carbide.

Abstract translation: 形成碳化硅烧结体的方法包括将碳化硅粉末与硼添加剂和碳混合以形成生坯混合物，并将生坯混合物成形为生坯，并用氮化硼涂覆生坯。 该方法进一步包括玻璃包封生坯并热等静压玻璃包封的生坯在约1900℃至约2400℃的温度范围内持续约1小时至约3小时 小时，从而形成密度至少为碳化硅理论密度的97％的碳化硅烧结体。

公开(公告)号：EP2456733A4

公开(公告)日：2013-03-13

申请号：EP10802902

申请日：2010-07-22

Applicant: SAINT GOBAIN CERAMICS

Inventor： PUJARI VIMAL K ,  HENNESSEY JAMES T ,  REILLY CHRISTOPHER J

IPC: C04B35/563 ,  C01B31/36 ,  C04B35/622 ,  C04B35/634 ,  C04B35/64

CPC classification number: C04B35/6264 ,  B82Y30/00 ,  C01B32/956 ,  C04B35/563 ,  C04B35/62605 ,  C04B35/6261 ,  C04B2235/3834 ,  C04B2235/3843 ,  C04B2235/3895 ,  C04B2235/422 ,  C04B2235/424 ,  C04B2235/425 ,  C04B2235/48 ,  C04B2235/483 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/5454 ,  C04B2235/608 ,  C04B2235/6581 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/96