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1. 发明授权

US4756791A Chemical vapor deposition process for producing metal carbide or nitride whiskers 失效
标题翻译：用于生产金属碳化物或氮化物晶须的化学气相沉积工艺
公开(公告)号：US4756791A
公开(公告)日：1988-07-12
申请号：US899833
申请日：1986-08-25
申请人： Charles D'Angelo , Joseph G. Baldoni, II , Sergej-Tomislav Buljan
发明人： Charles D'Angelo , Joseph G. Baldoni, II , Sergej-Tomislav Buljan
IPC分类号： C30B25/00 , C01B31/30 , C01B21/06
CPC分类号： C30B25/005 , C30B29/36 , C30B29/38
摘要： A chemical vapor deposition process for producing single crystal whiskers of metal carbides, nitrides, or carbonitrides involving flushing a reaction chamber including a suitable substrate surface heated to 1025.degree.-1125.degree. C., and flowing reactant gases past the substrate to form whiskers. The reactants comprise a halide of Ti, Zr, Hf, Nb, Ta or W and one or more of nitrogen, ammonia and suitable aliphatic hydrocarbons. The atomic ratio of carbon and/or nitrogen to metal is about 5:1 to 16:1; the volume ratio of hydrocarbon and/or nitrogen and/or ammonia to hydrogen is about 1:50-1:20. The preferred substrate materials are nickel or a high nickel alloy coated with TiC or TiN, or, for carbide whiskers, nickel impregnated graphite. The reactor walls and internal fixtures preferably provide the substrate surfaces. A more efficient batch process and a continuous process for whisker growth are disclosed.
摘要翻译：一种用于生产金属碳化物，氮化物或碳氮化物的单晶晶须的化学气相沉积方法，包括冲洗反应室，其包括加热至1025°-1125℃的合适的基底表面，并使反应物气体流过基底以形成晶须。反应物包括Ti，Zr，Hf，Nb，Ta或W的卤化物和氮，氨和合适的脂族烃中的一种或多种。碳和/或氮与金属的原子比为约5:1至16:1; 烃和/或氮和/或氨与氢的体积比为约1:50-1:20。优选的基底材料是镍或涂覆有TiC或TiN的高镍合金，或对于碳化物晶须，镍浸渍的石墨。反应器壁和内部固定件优选地提供基板表面。公开了一种更有效的间歇工艺和晶须生长的连续工艺。

2. 发明授权

US4988564A Metal carbide, nitride, or carbonitride whiskers coated with metal carbides, nitrides, carbonitrides, or oxides 失效
标题翻译：用金属碳化物，氮化物，碳氮化物或氧化物涂覆的金属碳化物，氮化物或碳氮化物晶须
公开(公告)号：US4988564A
公开(公告)日：1991-01-29
申请号：US272029
申请日：1988-11-16
申请人： Charles D'Angelo , Joseph G. Baldoni, II , Sergej-Tomislav Buljan
发明人： Charles D'Angelo , Joseph G. Baldoni, II , Sergej-Tomislav Buljan
IPC分类号： C04B41/45 , C23C16/32 , C23C16/34 , C23C16/36 , C30B33/00
CPC分类号： C23C16/36 , C04B41/4584 , C23C16/32 , C23C16/34 , C30B29/62 , C30B33/00 , Y10T428/29 , Y10T428/2904 , Y10T428/2918 , Y10T428/292 , Y10T428/2933 , Y10T428/2942 , Y10T428/2949 , Y10T428/2958 , Y10T428/2964 , Y10T428/2991
摘要： Single crystal whiskers of carbides, nitrides and carbonitrides of Ti, Zr, Hf, V, Nb, Ta, and W coated with one or more layers of different carbides, nitrides, or carbonitrides of Ti, Zr, Hf, Nb, Ta, or W or oxides of Al, Zr, or Hf. A process for the whisker production is also disclosed.
摘要翻译： Ti，Zr，Hf，V，Nb，Ta和W的碳化物，氮化物和碳氮化物的单晶晶须涂覆有一层或多层Ti，Zr，Hf，Nb，Ta或不同的碳化物，氮化物或碳氮化物 W或Al，Zr或Hf的氧化物。还披露了晶须生产的一个过程。

3. 发明授权

US4810530A Method of coating metal carbide nitride, and carbonitride whiskers with metal carbides, nitrides, carbonitrides, or oxides 失效
标题翻译：用金属碳化物，氮化物，碳氮化物或氧化物涂覆金属碳化物氮化物和碳氮化物晶须的方法
公开(公告)号：US4810530A
公开(公告)日：1989-03-07
申请号：US899835
申请日：1986-08-25
申请人： Charles D'Angelo , Joseph G. Baldoni, II , Sergej-Tomislav Buljan
发明人： Charles D'Angelo , Joseph G. Baldoni, II , Sergej-Tomislav Buljan
IPC分类号： C04B41/45 , C23C16/32 , C23C16/34 , C23C16/36 , C30B33/00 , B05D7/00
CPC分类号： C04B41/009 , C04B41/4584 , C23C16/32 , C23C16/34 , C23C16/36 , C30B29/62 , C30B33/00
摘要： A method for coating single crystal whiskers of carbides, nitrides or carbonitrides of Ti, Zr, Hf, V, Nb, Ta, or W with one or more layers of a carbide, nitride or carbonitride of Ti, Zr, Hf, Nb, Ta, or W, or oxides of Al, Zr, or Hf. The method involves flowing past the whiskers at about 1025.degree.-1125.degree. C. a mixture of hydrogen and one of the following gaseous mixtures: Group I comprises one or more of Ti, Zr, Hf, Nb, Ta, or W hhalides mixed with one or more of N.sub.2, NH.sub.3, or suitable free carbon forming aliphatic hydrocarbons. The atomic ratio of carbon and/or nitrogen to metal is about 5:1-16:1, and the volume ratio of hydrocarbon and/or N.sub.2 and/or NH.sub.3 to H.sub.2 is about 1:5 to 1:20. Group II comprises one or more Al, Zr, or Hf halides mixed with one or more suitable oxygen donor gases, in proportions selected to form the desired metal oxide.
摘要翻译：用Ti，Zr，Hf，Nb，Ta的一层或多层碳化物，氮化物或碳氮化物涂覆Ti，Zr，Hf，V，Nb，Ta或W的碳化物，氮化物或碳氮化物的单晶晶须的方法，或W，或Al，Zr或Hf的氧化物。该方法包括在约1025℃-1125℃下流过晶须，将氢气与以下气体混合物中的一种混合物混合：第I组包括与以下混合的一种或多种Ti，Zr，Hf，Nb，Ta或W卤素一种或多种N 2，NH 3或合适的游离碳形成脂族烃。碳和/或氮与金属的原子比为约5：1-16：1，烃和/或N 2和/或NH 3与H 2的体积比为约1:5至1:20。组II包含一种或多种与一种或多种合适的氧供体气体混合的Al，Zr或Hf卤化物，其比例被选择以形成所需的金属氧化物。

4. 发明授权

US4900525A Chemical vapor deposition reactor for producing metal carbide or nitride whiskers 失效
标题翻译：用于生产金属碳化物或氮化物晶须的化学气相沉积反应器
公开(公告)号：US4900525A
公开(公告)日：1990-02-13
申请号：US899834
申请日：1986-08-25
申请人： Charles D'Angelo , Joseph G. Baldoni, II , Sergej-Tomislav Buljan
发明人： Charles D'Angelo , Joseph G. Baldoni, II , Sergej-Tomislav Buljan
IPC分类号： C30B25/00
CPC分类号： C30B25/005 , C30B29/36 , C30B29/38 , Y10S117/90 , Y10T117/102
摘要： A reactor for producing single crystal metal carbide, nitride, or carbonitride whiskers, where the metal is one or more of Ti, Zr, Hf, Nb, Ta or W. The reactor walls and inner fixtures provide the substrate surfaces, greatly increasing the surface area available for whisker growth. Preferred substrate materials are nickel or high nickel alloy coated with TiC or TiN, or, for carbide or carbonitride whiskers, nickel impregnated graphite. An alternate embodiment provides a collecting chamber and vibrating means to mechanically detach whiskers, allowing for more efficient batch, or continuous operation.
摘要翻译：用于生产单晶金属碳化物，氮化物或碳氮化物晶须的反应器，其中金属是Ti，Zr，Hf，Nb，Ta或W中的一种或多种。反应器壁和内部固定件提供基板表面，大大增加了表面晶须生长区域。优选的衬底材料是涂覆有TiC或TiN的镍或高镍合金，或对于碳化物或碳氮化物晶须，镍浸渍的石墨。一个替代实施例提供一种收集室和振动装置，用于机械地分离晶须，允许更有效的批次或连续操作。

5. 发明授权

US5250477A Silicon nitride based composite with improved fracture toughness 失效
$Silicon nitride based composite with improved fracture toughness$
标题翻译：具有改善断裂韧性的氮化硅基复合材料
公开(公告)号：US5250477A
公开(公告)日：1993-10-05
申请号：US596112
申请日：1990-10-11
申请人： Joseph G. Baldoni, II , Sergej-Tomislav Buljan
发明人： Joseph G. Baldoni, II , Sergej-Tomislav Buljan
IPC分类号： C04B35/80 , C04B35/56
CPC分类号： C04B35/80 , Y10T407/27 , Y10T409/303752 , Y10T82/10
摘要： Composite materials, articles and cutting tools are prepared by densification to form a body comprising whiskers of hard refractory transition metal carbides, nitrides or carbonitrides uniformly distributed in a two-phase silicon nitride matrix. A first phase comprises silicon nitride grains and the second phase is an intergranular phase formed from one or more suitable densification aids. Optionally, dispersoid particles and/or polycrystalline fibers may also be incorporated. The preferred composite article or cutting tool has a fracture toughness equal to or greater than about 3.5 MPa.m.sup.1/2.
摘要翻译：通过致密化来制备复合材料，制品和切割工具，以形成包含均匀分布在两相氮化硅基体中的硬质耐火过渡金属碳化物，氮化物或碳氮化物的晶须的主体。第一相包括氮化硅晶粒，第二相是由一种或多种合适的致密化助剂形成的晶间相。任选地，还可以掺入分散质颗粒和/或多晶纤维。优选的复合制品或切削工具具有等于或大于约3.5MPa.m1 / 2的断裂韧性。

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