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1. 发明授权

US5273699A Moisture-resistant aluminum nitride powder and methods of making and using 失效
标题翻译：耐湿氮化铝粉末及其制造和使用方法
公开(公告)号：US5273699A
公开(公告)日：1993-12-28
申请号：US837293
申请日：1992-02-14
申请人： Arne K. Knudsen , Theresa A. Guiton , Laura L. Beecroft
发明人： Arne K. Knudsen , Theresa A. Guiton , Laura L. Beecroft
IPC分类号： C01B21/072 , C04B35/581 , C04B35/626 , C04B35/628 , C04B35/58
CPC分类号： C04B35/6263 , C01B21/0728 , C04B35/581 , C04B35/6264 , C04B35/62655 , C04B35/62815 , C04B35/62886 , C04B35/632 , C04B35/638 , C04B2235/3208 , C04B2235/3225 , C04B2235/3865 , C04B2235/3895 , C04B2235/441 , C04B2235/442 , C04B2235/443 , C04B2235/448 , C04B2235/5409 , C04B2235/6025 , C04B2235/723
摘要： Moisture-resistant aluminum nitride powder which is treated with an yttrium-containing compound. The method of treating the aluminum nitride compound includes (a) thoroughly mixing a slurry containing aluminum nitride powder, an yttrium-containing compound, and a solvent for the yttrium-containing compound in the absence of any surfactant and (b) removing the solvent from the slurry. The moisture-resistant aluminum nitride powder may be used in aqueous formulations for making ceramic articles.
摘要翻译：用含钇化合物处理的耐湿氮化铝粉末。处理氮化铝化合物的方法包括（a）在不存在任何表面活性剂的情况下，将含有钇的化合物的含有氮化铝粉末，含钇化合物和溶剂的浆料充分混合，和（b）从浆料。耐湿氮化铝粉末可用于制备陶瓷制品的水性制剂中。

2. 发明授权

US4957884A Titanium diboride/boron carbide composites with high hardness and toughness 失效
标题翻译：二硼化钛/碳化硼复合材料具有高硬度和韧性
公开(公告)号：US4957884A
公开(公告)日：1990-09-18
申请号：US181852
申请日：1988-04-15
申请人： Arne K. Knudsen , William Rafaniello
发明人： Arne K. Knudsen , William Rafaniello
IPC分类号： B01J19/12 , C01B31/36 , C01B35/04 , C04B35/563 , C04B35/58
CPC分类号： C04B35/645 , B01J19/121 , C01B31/36 , C01B35/04 , C04B35/563 , C04B35/58071 , B01J2219/0894 , C01P2002/72 , C01P2004/02 , C01P2004/03 , C01P2004/04 , C01P2004/61 , C01P2004/62 , C01P2006/10 , C01P2006/90
摘要： A powder composition consisting essentially of an intimate mixture of boron carbide and titanium diboride, the mixture having an average particle size of less than about 0.5 micron, the particles being uniformaly dispersed such that elemental analytical techniques show all discrete concentrations of boron carbide and titanium diboride to be less than or equal to about 0.5 micron in diameter, is disclosed. The powder is useful for making a densified ceramic composition comprising titanium diboride grains, having an average grain size of less than or equal to about 3 microns in diameter, uniformly dispersed with boron carbide grains, having an average grain size of less than about 5 microns in diameter. The densified composition exhibits improved hardness and toughness when compared with titanium diboride or boron carbide compositions. The powder can be prepared by a process comprising subjecting a stream of reactant gases consisting essentially of a volatile boron source, a volatile titanium source, a volatile carbon source, and a hydrogen source to an amount of laser radiation and at a pressure effective to convert as least a portion of the volatile boron, carbon and titanium sources to an intimate mixture of boron carbide and titanium diboride.
摘要翻译：基本上由碳化硼和二硼化钛的紧密混合物组成的粉末组合物，该混合物具有小于约0.5微米的平均粒度，所述颗粒是均匀分散的，使得元素分析技术显示出所有离散浓度的碳化硼和二硼化钛为直径小于或等于约0.5微米。该粉末可用于制造包含平均粒径小于或等于约3微米直径的二硼化钛颗粒的致密化陶瓷组合物，其平均颗粒尺寸小于约5微米，均匀分散于碳化硼颗粒中直径。与二硼化钛或碳化硼组合物相比，致密组合物显示出改进的硬度和韧性。粉末可以通过以下方法制备，该方法包括使基本上由挥发性硼源，挥发性钛源，挥发性碳源和氢源组成的反应物气流经受一定量的激光辐射并且在有效转化的压力挥发性硼，碳和钛的至少一部分源自碳化硼和二硼化钛的紧密混合物。

3. 发明授权

US5283214A Increasing AlN thermal conductivity via pre-densification treatment 失效
标题翻译：通过预致密化处理提高A1N热导率
公开(公告)号：US5283214A
公开(公告)日：1994-02-01
申请号：US656173
申请日：1991-02-26
申请人： Arne K. Knudsen
发明人： Arne K. Knudsen
IPC分类号： C04B35/581 , C04B35/58
CPC分类号： C04B35/581
摘要： A method for producing dense aluminum nitride articles having enhanced thermal conductivity is disclosed. The method comprises the steps of forming a powder compact comprising AlN alone or in combination with other ceramic compounds, adding a densification aid, subsequently exposing the compact to an environment which serves to reduce the oxygen content of the compact, and then densifying the compact by sintering or hot-pressing to provide a dense article. The densified AlN article is found to have a high thermal conductivity.
摘要翻译： PCT No.PCT / US89 / 03813 Sec。 371日期1991年2月26日 102（e）1991年2月26日PCT 1989年9月1日PCT。一种制造具有增强导热性的致密氮化铝制品的方法。该方法包括以下步骤：形成包含单独的AlN或与其它陶瓷化合物组合的粉末压块，加入致密化助剂，随后将压实体暴露于用于降低压块的氧含量的环境，然后通过烧结或热压以提供致密的制品。发现致密的AlN制品具有高导热性。

4. 发明授权

US4928254A Laser flash thermal conductivity apparatus and method 失效
标题翻译：激光闪光导热装置及方法
公开(公告)号：US4928254A
公开(公告)日：1990-05-22
申请号：US187372
申请日：1988-04-28
申请人： Arne K. Knudsen , Scott H. Delzer , Charles A. Langhoff
发明人： Arne K. Knudsen , Scott H. Delzer , Charles A. Langhoff
IPC分类号： G01N21/71 , G01N25/18
CPC分类号： G01N21/71 , G01N25/18
摘要： A sequence of temporally-spaced radiant energy pulses are applied to the front surface of the sample and the heat rise caused by each thermal pulse is measured at the second surface using a suitable thermocouple or infrared sensor. The temperature rise data for each pulse is digitized and stored in a two-state memory device such as a random access memory. The data from each successive pulse is coadded and statistically processed by averaging to derive a set of favored values indicative of the temperature of the sample as a function of time. The favored values data is further processed using a least squares curve fitting algorithm to determine a numerical value indicative of the diffusivity of the sample.
摘要翻译：将时间间隔的辐射能量脉冲序列施加到样品的前表面，并且使用合适的热电偶或红外传感器在第二表面处测量由每个热脉冲引起的热升高。每个脉冲的温升数据被数字化并存储在诸如随机存取存储器的两状态存储器件中。来自每个连续脉冲的数据通过平均被加和统计处理，以得出一组表示样品的温度作为时间的函数的有利值。使用最小二乘法曲线拟合算法进一步处理有利值数据，以确定指示样品扩散性的数值。

5. 发明授权

US4689129A Process for the preparation of submicron-sized titanium diboride 失效
标题翻译：制备亚微米尺寸的二硼化钛的方法
公开(公告)号：US4689129A
公开(公告)日：1987-08-25
申请号：US755393
申请日：1985-07-16
申请人： Arne K. Knudsen
发明人： Arne K. Knudsen
IPC分类号： B01J19/12 , C01B35/04
CPC分类号： B01J19/121 , C01B35/04
摘要： Ultrafine titanium diboride powder is produced by subjecting a gaseous mixture of BCl.sub.3, H.sub.2, and TiCl.sub.4 to an amount of laser radiation effective to convert at least a portion of the volatile boron and titanium sources to titanium diboride. The TiB.sub.2 powders consist primarily of monodispersed equiaxial particles having a diameter of about 0.025 micron to about 0.3 micron.
摘要翻译：通过使BCl 3，H 2和TiCl 4的气体混合物经受有效量的激光辐射量将至少一部分挥发性硼和钛源转化成二硼化钛来生产超细二硼化钛粉末。 TiB2粉末主要由直径约0.025微米至约0.3微米的单分散等轴粒子组成。

6. 发明授权

US06168859A Filler powder comprising a partially coated alumina powder and process to make the filler powder 失效
标题翻译：包含部分涂覆的氧化铝粉末的填料粉末和制备填料粉末的方法
公开(公告)号：US06168859A
公开(公告)日：2001-01-02
申请号：US09086926
申请日：1998-05-29
申请人： Lynne K. Mills , Eric J. Swedberg , Arne K. Knudsen
发明人： Lynne K. Mills , Eric J. Swedberg , Arne K. Knudsen
IPC分类号： B32B516
CPC分类号： C04B41/009 , C04B41/4584 , C04B41/81 , C04B2111/00844 , C08K9/06 , H01L23/295 , H01L2924/0002 , Y10T428/12528 , Y10T428/257 , Y10T428/259 , Y10T428/2991 , Y10T428/2993 , C04B41/4535 , C04B41/4554 , C04B41/4572 , C04B41/5035 , C04B35/10 , H01L2924/00
摘要： A filler powder comprised of an alumina powder coated with a silicon containing coating, wherein the silicon containing coating at most partially covers the surface of said coated alumina powder and the filler powder, when mixed with a thermosetting epoxy resin, has an average spiral flow length that is at least about 1.1 times greater than a comparable filler powder containing uncoated alumina powder mixed with the thermosetting resin. A preferred process for making the filler powder comprises: heating, simultaneously, an alumina powder with a second powder coated with an organo-silicate to a temperature for a time sufficient to volatilize, deposit and pyrolyze at least a portion of the organo-silicate on the alumina powder to form a silicon containing inorganic coating thereon.
摘要翻译：一种由涂覆有含硅涂层的氧化铝粉末组成的填料粉末，其中含硅涂层至少部分覆盖所述涂覆的氧化铝粉末和填料粉末的表面，当与热固性环氧树脂混合时，其平均螺旋流动长度比含有与热固性树脂混合的未涂覆的氧化铝粉末相当的填料粉末的至少约1.1倍。制备填料粉末的优选方法包括：同时加热涂有有机硅酸盐的第二粉末的氧化铝粉末至足以使至少部分有机硅酸盐挥发，沉积和热解的温度氧化铝粉末在其上形成含硅无机涂层。

7. 发明授权

US5032242A Titanium diboride/boron carbide composites with high hardness and toughness 失效
标题翻译：二硼化钛/碳化硼复合材料具有高硬度和韧性
公开(公告)号：US5032242A
公开(公告)日：1991-07-16
申请号：US468497
申请日：1990-01-22
申请人： Arne K. Knudsen , William Rafaniello
发明人： Arne K. Knudsen , William Rafaniello
IPC分类号： B01J19/12 , C01B31/36 , C01B35/04 , C04B35/563 , C04B35/58
CPC分类号： C04B35/645 , B01J19/121 , C01B31/36 , C01B35/04 , C04B35/563 , C04B35/58071 , B01J2219/0894 , C01P2002/72 , C01P2004/02 , C01P2004/03 , C01P2004/04 , C01P2004/61 , C01P2004/62 , C01P2006/10 , C01P2006/90
摘要： A powder composition consisting essentially of an intimate mixture of boron carbide and titanium diboride, the mixture having an average particle size of less than about 0.5 micron, the particles being uniformly dispersed such that elemental analytical techniques show all discrete concentrations of boron carbide and titanium diboride to be less than or equal to about 0.5 micron in diameter, is disclosed. The powder is useful for making a densified ceramic composition comprising titanium diboride grains, having an average grain size of less than or equal to about 3 microns in diameter, uniformly dispersed with boron carbide grains, having an average grain size of less than about 5 microns in diameter. The densified composition exhibits improved hardness and toughness when compared wiht titanium diboride or boron carbide compositions. The powder can be prepared by a process comprising subjecting a stream of reactant gases consisting essentially of a volatile boron source, a volatile titanium source, a volatile carbon source, and a hydrogen source to an amount of laser radiation and at a pressure effective to convert at least a portion of the volatile boron, carbon and titanium sources to an intimate mixture of boron carbide and titanium diboride.
摘要翻译：基本上由碳化硼和二硼化钛的紧密混合物组成的粉末组合物，该混合物具有小于约0.5微米的平均粒度，所述颗粒均匀分散，使得元素分析技术显示出所有离散浓度的碳化硼和二硼化钛为直径小于或等于约0.5微米。该粉末可用于制造包含平均粒径小于或等于约3微米直径的二硼化钛颗粒的致密化陶瓷组合物，其平均颗粒尺寸小于约5微米，均匀分散于碳化硼颗粒中直径。当与二硼化钛或碳化硼组合物相比时，致密组合物显示出改进的硬度和韧性。粉末可以通过以下方法制备，该方法包括使基本上由挥发性硼源，挥发性钛源，挥发性碳源和氢源组成的反应物气流经受一定量的激光辐射并且在有效转化的压力挥发性硼，碳和钛的至少一部分源于碳化硼和二硼化钛的紧密混合物。

8. 发明授权

US4895628A Process for the preparation of submicron-sized boron carbide powders 失效
标题翻译：制备亚微米尺寸碳化硼粉末的方法
公开(公告)号：US4895628A
公开(公告)日：1990-01-23
申请号：US889665
申请日：1986-07-28
申请人： Arne K. Knudsen , Charles A. Langhoff
发明人： Arne K. Knudsen , Charles A. Langhoff
IPC分类号： B01J19/12 , C01B31/36 , C04B35/563
CPC分类号： C04B35/563 , B01J19/121 , B82Y30/00 , C01B31/36 , C04B35/645 , C01P2002/72 , C01P2004/62 , C01P2004/64 , C01P2006/10 , C01P2006/12 , C01P2006/60 , C01P2006/90
摘要： Ultrafine, high purity B.sub.4 C is produced by BCl.sub.3, CH.sub.4 or C.sub.2 H.sub.4, and H.sub.2, using a CO.sub.2 laser, when a stoichiometric excess of H.sub.2 and about half the stoichiometric amount of CH.sub.4 or C.sub.2 H.sub.4 is employed.
摘要翻译：当使用化学计量过量的H 2和约一半化学计量量的CH 4或C 2 H 4时，使用CO 2激光由BCl 3，CH 4或C 2 H 4和H 2产生超细的高纯度B4C。

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