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公开(公告)号：US20110227259A1
公开(公告)日：2011-09-22
申请号：US12841474
申请日：2010-07-22
IPC分类号： C04B35/645 , C04B35/64
CPC分类号： 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
摘要： 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° C., 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.
摘要翻译： 形成烧结碳化硼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产生低氧碳化硼粉末，将烧结助剂和压制助剂与低氧碳化硼粉末混合以形成绿色混合物 ，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粒径在约5nm至约100nm范围内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将生坯碳化硼体烧结，以及将等温压制烧结体的密度大于碳化硼理论密度（TD）的约98.5％的密度。 或者，该方法可以包括在大于约2200℃的温度下烧结成形碳化硼生坯，从而形成B4C / SiC的共晶液体固溶体，形成密度大于约98的烧结碳化硼体 ％TD。
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2.发明申请Method of preparing pressureless sintered, highly dense boron carbide materials 失效制备无压烧结，高密度碳化硼材料的方法公开(公告)号：US20090047544A1
公开(公告)日：2009-02-19
申请号：US12221916
申请日：2008-08-07
CPC分类号： 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
摘要： 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.
摘要翻译： 在制备碳化硼材料的方法中，碳化硼粉末在高温下用基本上纯的水洗涤以产生洗涤的碳化硼粉末。 将洗涤的碳化硼粉末与烧结助剂组合。 将碳化硼粉末和烧结助剂的混合物压制以形成成形材料，并将成形材料烧结。 烧结碳化硼材料包括碳化硼组分，其包含碳化硼，元素碳，基于碳化硼组分的总重量不超过约0.6重量％的氧。 烧结碳化硼材料的密度至少为理论密度的约99％。 另一种烧结碳化硼材料包括碳化硼组分，其包含碳化硼，碳化硅，元素碳和基于碳化硼组分的总重量不大于约0.3重量％的氧，并且至少具有至少 约97％的理论密度。
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3.发明授权Method of preparing pressureless sintered, highly dense boron carbide materials 失效制备无压烧结，高密度碳化硼材料的方法公开(公告)号：US07919040B2
公开(公告)日：2011-04-05
申请号：US12221916
申请日：2008-08-07
IPC分类号： B28B3/00
CPC分类号： 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
摘要： 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.
摘要翻译： 在制备碳化硼材料的方法中，碳化硼粉末在高温下用基本上纯的水洗涤以产生洗涤的碳化硼粉末。 将洗涤的碳化硼粉末与烧结助剂组合。 将碳化硼粉末和烧结助剂的混合物压制以形成成形材料，并将成形材料烧结。 烧结碳化硼材料包括碳化硼组分，其包含碳化硼，元素碳，基于碳化硼组分的总重量不超过约0.6重量％的氧。 烧结碳化硼材料的密度至少为理论密度的约99％。 另一种烧结碳化硼材料包括碳化硼组分，其包含碳化硼，碳化硅，元素碳和基于碳化硼组分的总重量不大于约0.3重量％的氧，并且至少具有至少 约97％的理论密度。
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公开(公告)号：US20110175263A1
公开(公告)日：2011-07-21
申请号：US12841436
申请日：2010-07-22
IPC分类号： C04B35/64
CPC分类号： 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
摘要： 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.
摘要翻译： 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绿色混合物并将绿色混合物成形为生坯体，并用氮化硼涂覆生坯体。 该方法还包括将生坯体包裹的玻璃和在约1900℃至约2400℃之间的温度范围内的热等静压压玻璃封装的生坯在约1小时至约 约3小时，从而形成具有至少97％的碳化硅理论密度的碳化硅烧结体。
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5.发明申请METHOD OF PREPARING PRESSURELESS SINTERED, HIGHLY DENSE BORON CARBIDE MATERIALS 审中-公开制备无压烧结的方法，高密度硼硼碳材料公开(公告)号：US20110160035A1
公开(公告)日：2011-06-30
申请号：US13045356
申请日：2011-03-10
IPC分类号： C04B35/563 , C04B35/565
CPC分类号： 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
摘要： 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.
摘要翻译： 在制备碳化硼材料的方法中，碳化硼粉末在高温下用基本上纯的水洗涤以产生洗涤的碳化硼粉末。 将洗涤的碳化硼粉末与烧结助剂组合。 将碳化硼粉末和烧结助剂的混合物压制以形成成形材料，并将成形材料烧结。 烧结碳化硼材料包括碳化硼组分，其包含碳化硼，元素碳，基于碳化硼组分的总重量不超过约0.6重量％的氧。 烧结碳化硼材料的密度至少为理论密度的约99％。 另一种烧结碳化硼材料包括碳化硼组分，其包含碳化硼，碳化硅，元素碳和基于碳化硼组分的总重量不大于约0.3重量％的氧，并且至少具有至少 约97％的理论密度。
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