公开(公告)号：US08652981B2

公开(公告)日：2014-02-18

申请号：US12657455

申请日：2010-01-21

申请人： Biljana Mikijelj

发明人： Biljana Mikijelj

IPC分类号： C04B35/587

CPC分类号： C04B35/584 ,  C04B35/593 ,  C04B35/5935 ,  C04B35/6261 ,  C04B35/645 ,  C04B35/6455 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3873 ,  C04B2235/3895 ,  C04B2235/5409 ,  C04B2235/668 ,  C04B2235/767 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/85 ,  C04B2235/96 ,  C04B2235/9607

摘要： Silicon nitride materials with high strength, fracture toughness values, and Weibull moduli simultaneously, due to unique large grain reinforcing microstructures and well engineered grain boundary compositions. The invention demonstrates that, surprisingly and contrary to prior art, a silicon nitride material can be made which simultaneously has high strength above about 850-900 MPa, a Weibull above about 15 and high fracture toughness (above about 8 and 9 MPa·m1/2), and has reinforcing grains longer than 5 μm, typically longer than 10 μm in the microstructure without compromising its properties and reliability. The product of this invention can be processed using a variety of densification methods, including gas-pressure sintering, hot pressing, hot isostatic pressing, but is not limited to these, and does not require multiple heat treatments for all of these features to be achieved.

摘要翻译： 由于独特的大颗粒增强微结构和精心设计的晶界组成，同时具有高强度，断裂韧性值和威布尔模量的氮化硅材料。 本发明表明，与现有技术相反，可以制造氮化硅材料，其同时具有高于约850-900MPa的高强度，高于约15的威布尔和高断裂韧性（高于约8和9MPa·m1 / 2），并且在不损害其性能和可靠性的情况下，在微结构中具有长于5μm的增强晶粒，通常长于10μm。 本发明的产品可以使用各种致密化方法进行加工，包括气压烧结，热压，热等静压，但不限于此，并且不需要多次热处理以实现所有这些特征 。

公开(公告)号：US20110290832A1

公开(公告)日：2011-12-01

申请号：US12787521

申请日：2010-05-26

申请人： Randy Smith

发明人： Randy Smith

IPC分类号： A45F5/00

CPC分类号： A45F5/02 ,  A42B3/006 ,  A45F5/021 ,  A45F2005/008

摘要： An aspect of the present disclosure relates to a device for securing a helmet, such as a helmet holster. The device may include a pocket defined by a base and a pocket portion, wherein the pocket portion exhibits a width and a height. The width of the pocket portion may be equal to or greater than said height of the pocket portion. The device may also include an adjustable restraint, wherein the restraint includes a first portion affixed to the base, configured to at least partially retain at least a portion of the helmet in the pocket. The device may further include an adjustable strap affixed to the pocket.

摘要翻译： 本公开的一个方面涉及用于固定头盔的装置，例如头盔皮套。 该装置可以包括由底座和袋部分限定的口袋，其中口袋部分呈现宽度和高度。 袋部的宽度可以等于或大于袋部的所述高度。 该装置还可以包括可调约束装置，其中限制装置包括固定到基座的第一部分，其构造成至少部分地将头盔的至少一部分保持在口袋中。 该装置还可以包括固定在口袋上的可调节带。

公开(公告)号：US07989380B2

公开(公告)日：2011-08-02

申请号：US12315056

申请日：2008-11-26

申请人： Biljana Mikijelj ,  Shanghua Wu

发明人： Biljana Mikijelj ,  Shanghua Wu

IPC分类号： C04B35/575 ,  C04B35/565

CPC分类号： C04B35/5603 ,  C04B35/575 ,  C04B2235/3418 ,  C04B2235/3821 ,  C04B2235/383 ,  C04B2235/3834 ,  C04B2235/386 ,  C04B2235/3873 ,  C04B2235/3895 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/72 ,  C04B2235/721 ,  C04B2235/767 ,  C04B2235/77 ,  C04B2235/78 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/96

摘要： A dense silicon carbide (SiC) material with boron (B), nitrogen (N) and oxygen (O) as the only additives and with excellent insulting performance (electrical volume resistivity greater than 1×108 Ω·cm). The SiC ceramic material, made from a powder mix of, by weight, from 0.1 to 7% boron carbide, from 0.1 to 7% silicon nitride, from 0.1 to 6% silicon dioxide, and a balance of α-SiC, consists essentially of (1) at least 90% by weight of α-SiC, (2) about 0.3 to 4.0% by weight of boron, (3) about 0.1 to 6.0% by weight of nitrogen, (4) about 0.06 to 0.5% by weight of oxygen, and (5) no more than 0.07% by weight of metallic impurities; wherein the boron and nitrogen are present according to an B/N atomic ratio of 0.9 to 1.5. In particular, this material is suitable for applications in plasma etching chambers for semiconductor and integrated circuit manufacturing.

摘要翻译： 具有硼（B），氮（N）和氧（O）的致密碳化硅（SiC）材料作为唯一的添加剂，具有优异的侮辱性能（电气体积电阻率大于1×108和OHgr·cm）。 由以重量计0.1至7％的碳化硼，0.1至7％的氮化硅，0.1至6％的二氧化硅和余量的α-SiC的粉末混合物制成的SiC陶瓷材料基本上由 （1）至少90重量％的α-SiC，（2）约0.3-4.0重量％的硼，（3）约0.1至6.0重量％的氮，（4）约0.06至0.5重量％ 的氧，和（5）不超过0.07重量％的金属杂质; 其中硼和氮根据B / N原子比为0.9至1.5存在。 特别地，该材料适用于用于半导体和集成电路制造的等离子体蚀刻室。

公开(公告)号：US20090029843A1

公开(公告)日：2009-01-29

申请号：US11881510

申请日：2007-07-27

申请人： Biljana Mikijelj

发明人： Biljana Mikijelj

IPC分类号： C04B35/587 ,  C04B37/00

CPC分类号： C04B35/591 ,  C04B35/593 ,  C04B35/6316 ,  C04B35/645 ,  C04B37/001 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3222 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3445 ,  C04B2235/3865 ,  C04B2235/3869 ,  C04B2235/428 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/6562 ,  C04B2235/661 ,  C04B2235/767 ,  C04B2235/77 ,  C04B2235/78 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/94 ,  C04B2235/95 ,  C04B2235/96 ,  C04B2237/368 ,  Y10T428/31663 ,  Y10T428/31667

摘要： High-volume, fully dense, multi-component monoliths with microstructurally indistinguishable joints that can be used as refractory, corrosion and wear resistant components in the non-ferrous metal industry. The Si3N4 monoliths according to the invention comprise at least 90% by weight β-type Si3N4 and up to 10% by weight of a predominantly amorphous binder phase, said binder phase being formed from compositions of the rare earth metal —Al—Si—O—N, rare earth metal —Mg—Si—O—N or Mg—Si—O—N systems. Preferably the rare earth metal is yttrium (Y). The monoliths have a volume of greater than 250 cm3. A method of making the multi-component monoliths is achieved by simultaneously joining and uniaxially hot pressing an assembly of reaction bonded silicon nitride bodies (RBSN bodies). RBSN bodies are placed in contact with each other in the substantial absence of any interlayer or ceramic paste in between.

摘要翻译： 高容量，完全致密的多组分整料，具有微结构难以区分的接头，可用作有色金属工业中的耐火，耐腐蚀和耐磨部件。 根据本发明的Si 3 N 4整体包含至少90重量％的β型Si 3 N 4和至多10重量％的主要为无定形粘结相，所述粘结相由稀土金属-Al-Si-ON ，稀土金属-Mg-Si-ON或Mg-Si-ON系统。 稀土金属优选为钇（Y）。 整料具有大于250cm 3的体积。 通过同时接合和单轴热压反应接合的氮化硅体（RBSN体）的组件来实现制造多组分整料的方法。 基本上不存在任何中间层或陶瓷浆料，将RBSN体彼此接触。

公开(公告)号：US4946630A

公开(公告)日：1990-08-07

申请号：US448889

申请日：1982-10-12

申请人： Andre Ezis

发明人： Andre Ezis

IPC分类号： C01B21/064 ,  C04B35/584 ,  C04B35/593

CPC分类号： C04B35/593

摘要： A method of making a silicon nitride comprising object by use of a low density reaction bonded body is disclosed. An uncompacted mixture of silicon powder and a fluxing agent is heated in a nitrogen atmosphere to react the mixture with the atmosphere to form a body consisting essentially of silicon nitride and having a dimension greater than and a density less than the finished product. The nitrided mixture is then hot pressed to produce a silicon nitride comprising object of desired dimension and density, which material is useful as a cutting tool material for machining metals.

摘要翻译： PCT No.PCT / US82 / 01461 Sec。 371日期1982年10月12日 102（e）1982年10月12日授权PCT申请日为1982年10月12日。一种通过使用低密度反应接合体制造包含物体的氮化硅的方法。 将硅粉末和助熔剂的未压缩混合物在氮气气氛中加热以使混合物与大气反应以形成主要由氮化硅组成并且尺寸大于和小于最终产品的密度的主体。 然后将氮化的混合物热压以产生包含所需尺寸和密度的物体的氮化硅，该材料可用作用于加工金属的切削工具材料。

公开(公告)号：US4887528A

公开(公告)日：1989-12-19

申请号：US264374

申请日：1988-10-31

申请人： Arthur A. Ruge ,  Donald A. Kenagy

发明人： Arthur A. Ruge ,  Donald A. Kenagy

IPC分类号： B41N7/04

CPC分类号： B41N7/04 ,  B41N2207/02 ,  B41N2207/14 ,  Y10S428/906 ,  Y10T156/1062 ,  Y10T156/1064 ,  Y10T29/49885 ,  Y10T29/49906 ,  Y10T29/49982 ,  Y10T428/31663

摘要： A dampening system roll which may be used in an offset printing press, is made of porous rebonded, fused silica, the pores of which are impregnated and sealed by a silicone resin. In a typical embodiment of the invention disclosed herein, a dampening system roll is fabricated by providing a 3 3/4 inch diameter 42 1/2 inch long fused silica cylinder infiltrated with a silicone resin and ground and polished to a 30 microinch Ra exterior smoothness. The ends of the cylinder are drilled out to provide a 1 3/4 inch diameter by 4 inch deep hollow core on each side which is adapted to receive a pair of shafts or end caps typically made of stainless steel or other low expansion metal alloy material and the end shafts or caps are bonded into the drilled ends of the fused silica cylinder for interfacing the printing press system. In an additional embodiment, the ends of the cylinder are core drilled to provide a pair of axial sockets each about 2 inches in diameter and about 2 inches deep. A threaded, low expansion metal alloy insert is then bonded to the interior of each such socket and mating threaded shafts are screwed into the inserts for connecting the cylinder to the remainder of the dampening system.

摘要翻译： 可用于胶版印刷机中的阻尼系统辊由多孔重结晶的熔融二氧化硅制成，其孔被硅树脂浸渍和密封。 在本文公开的本发明的典型实施例中，通过提供浸入硅树脂的3 3/4英寸直径的42 1/2英寸长的熔融石英滚筒制造阻尼系统辊，并研磨并抛光至30微英寸Ra外部平滑度 。 圆柱体的端部被钻出以提供每侧4英寸深的中空芯部的1 3/4英寸直径，其适于接收通常由不锈钢或其它低膨胀金属合金材料制成的一对轴或端盖 并且端轴或盖结合到熔融石英瓶的钻孔端，用于与印刷机系统接合。 在另外的实施例中，圆筒的端部是钻芯的，以提供一对直径约2英寸和约2英寸深的轴向插座。 然后将螺纹的低膨胀金属合金插入件结合到每个这样的插座的内部，并且将配合的螺纹轴拧入插入件中，以将气缸连接到阻尼系统的其余部分。

公开(公告)号：US4848984A

公开(公告)日：1989-07-18

申请号：US652410

申请日：1984-09-20

申请人： Andre Ezis ,  Elaine C. Beckwith

发明人： Andre Ezis ,  Elaine C. Beckwith

IPC分类号： C04B35/593

CPC分类号： C04B35/593

摘要： A method of making a reaction bonded/hot pressed silicon nitride comprising object is disclosed. Second phase crystallites are formed prior to hot pressing. A mixture of silicon, SiO.sub.2, and 0.4-2.3 molar percent (by weight of the silicon) of oxygen carrying agents, i.e., Y.sub.2 O.sub.3 and Al.sub.2 O.sub.3, is performed and reaction nitrided to form discs or billets having at least 60% alpha Si.sub.3 N.sub.4 and a high proportion of second phase crystallites which displace substantially all silicate glass except for a controlled small quantity. The reactive amounts of Y.sub.2 O.sub.3, Al.sub.2 O.sub.3 and SiO.sub.2 are controlled to assure formation of substantially Y.sub.1 SiO.sub.2 N as the second phase crystallite. Al.sub.2 O.sub.3 is controlled in an amount of 0.4-4% by weight to ensure that the small proportion of glass serves to protect the oxynitrides against linear oxidation kinetics. The hot pressed material has no visual mottle porosity associated therewith.

摘要翻译： 公开了制造包含反应结合/热压氮化硅的物体的方法。 在热压之前形成第二相微晶。 执行硅，SiO 2和0.4-2.3摩尔％（重量比的硅）氧气载体（即Y 2 O 3和Al 2 O 3）的混合物，并将其反应氮化以形成具有至少60％的α3 Si 3 N 4和 高比例的第二相微晶，除了受控的少量之外基本上置换所有的硅酸盐玻璃。 控制Y 2 O 3，Al 2 O 3和SiO 2的反应量，以确保形成基本上作为第二相微晶的Y1SiO2N。 控制Al2O3的量为0.4-4重量％，以确保玻璃的小比例用于保护氮氧化物免受线性氧化动力学的影响。 热压材料没有与之相关的视觉斑点孔隙。

公开(公告)号：US10679759B2

公开(公告)日：2020-06-09

申请号：US14777293

申请日：2014-03-14

申请人： CERADYNE, INC

发明人： Kevin S. Cook ,  Beth D. Bosley

IPC分类号： G21C15/28 ,  G21C5/12 ,  G21C9/033 ,  G21C13/00 ,  G21C15/18

摘要： A method of cooling a nuclear reactor core is disclosed. The method includes contacting the nuclear reactor core with an aqueous solution comprising at least one of polyhedral boron hydride anions or carborane anions. Nuclear reactors are also disclosed. The nuclear reactor has a neutron moderator that is an aqueous solution comprising at least one of polyhedral boron hydride anions or carborane anions, or the nuclear reactor has an emergency core cooling system including a vessel containing a volume of an aqueous solution comprising at least one of polyhedral boron hydride anions or carborane anions. The nuclear reactor can also have both an aqueous solution comprising at least one of polyhedral boron hydride anions or carborane anions as a neutron moderator and an emergency core cooling system that includes an aqueous solution comprising at least one of polyhedral boron hydride anions or carborane anions.

公开(公告)号：US20120255428A1

公开(公告)日：2012-10-11

申请号：US12928061

申请日：2010-12-01

申请人： Richard L. Allor ,  Thomas J. Husak ,  Dainius E. Skiotys

发明人： Richard L. Allor ,  Thomas J. Husak ,  Dainius E. Skiotys

IPC分类号： F41H7/04

CPC分类号： F41H7/042

摘要： An armor blast shield for use on the bottom of a vehicle to protect occupants of the vehicle from improvised explosive devices. A preferred embodiment is configured in a V-shaped configuration formed by at least two planar blast resistant panels and an I-beam having channels with inclined walls which receive the panels at an obtuse angle. The panels are adhesively adhered to the I-beam channel walls and at least one bolt is secured through the I-beam and a panel to provide superior blast resistant performance as compared to welded panels.

摘要翻译： 用于车辆底部的护甲防护罩，以保护车辆的乘客免于简易爆炸装置。 优选实施例被配置为由至少两个平面防爆板和具有倾斜壁的通道的I形梁形成的V形构造，所述倾斜壁以钝角接收所述面板。 这些面板粘合地粘附到I型梁通道壁上，并且至少一个螺栓通过工字梁和面板固定，以提供与焊接面板相比优异的防爆性能。

公开(公告)号：US20120190530A1

公开(公告)日：2012-07-26

申请号：US12657455

申请日：2010-01-21

申请人： Biljana Mikijelj

发明人： Biljana Mikijelj

IPC分类号： C04B35/586 ,  B29C67/04

CPC分类号： C04B35/584 ,  C04B35/593 ,  C04B35/5935 ,  C04B35/6261 ,  C04B35/645 ,  C04B35/6455 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3873 ,  C04B2235/3895 ,  C04B2235/5409 ,  C04B2235/668 ,  C04B2235/767 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/85 ,  C04B2235/96 ,  C04B2235/9607

摘要： Silicon nitride materials with high strength, fracture toughness values, and Weibull moduli simultaneously, due to unique large grain reinforcing microstructures and well engineered grain boundary compositions. The invention demonstrates that, surprisingly and contrary to prior art, a silicon nitride material can be made which simultaneously has high strength above about 850-900 MPa, a Weibull above about 15 and high fracture toughness (above about 8 and 9 MPa·m1/2), and has reinforcing grains longer than 5 μm, typically longer than 10 μm in the microstructure without compromising its properties and reliability. The product of this invention can be processed using a variety of densification methods, including gas-pressure sintering, hot pressing, hot isostatic pressing, but is not limited to these, and does not require multiple heat treatments for all of these features to be achieved.

摘要翻译： 由于独特的大颗粒增强微结构和精心设计的晶界组成，同时具有高强度，断裂韧性值和威布尔模量的氮化硅材料。 本发明表明，与现有技术相反，可以制造氮化硅材料，其同时具有高于约850-900MPa的高强度，高于约15的威布尔和高断裂韧性（高于约8和9MPa·m1 / 2），并且在不损害其性能和可靠性的情况下，在微结构中具有长于5μm的增强晶粒，通常长于10μm。 本发明的产品可以使用各种致密化方法进行加工，包括气压烧结，热压，热等静压，但不限于此，并且不需要多次热处理以实现所有这些特征 。