公开(公告)号：US20090121197A1

公开(公告)日：2009-05-14

申请号：US12225426

申请日：2007-03-12

申请人： Hubert Thaler ,  Clemens Schmalzried ,  Frank Wallmeier ,  Georg Victor

发明人： Hubert Thaler ,  Clemens Schmalzried ,  Frank Wallmeier ,  Georg Victor

IPC分类号： C04B35/52 ,  C04B35/56 ,  C04B35/58 ,  B28B1/00 ,  H01B1/04 ,  C25C3/06

CPC分类号： C04B35/58064 ,  C04B35/58071 ,  C04B35/58078 ,  C04B35/62655 ,  C04B35/62695 ,  C04B35/645 ,  C04B35/6455 ,  C04B2235/3217 ,  C04B2235/3813 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/3847 ,  C04B2235/3895 ,  C04B2235/402 ,  C04B2235/421 ,  C04B2235/422 ,  C04B2235/428 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2235/6027 ,  C04B2235/6562 ,  C04B2235/6581 ,  C04B2235/666 ,  C04B2235/668 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/94 ,  C04B2235/95 ,  C04B2235/9669 ,  C04B2235/9676 ,  C25C3/08 ,  G01K1/105

摘要： The invention relates to a sintered material which is based on transition metal diborides and comprises a) as main phase, 90-99% by weight of a fine-grained transition metal diboride or transition metal diboride mixed crystal comprising at least two transition metal diborides or mixtures of such diboride mixed crystals or mixtures of such diboride mixed crystals with one or more transition metal diborides, where the transition metals are selected from sub-groups IV to VI of the Periodic Table, b) as second phase, 1-5% by weight of particulate boron carbide and/or silicon carbide and c) optionally as third phase, up to 5% by weight of a non-continuous, oxygen-containing grain boundary phase. The invention further relates to a pulverulent sinterable mixture for producing such a sintered material, processes for producing the sintered material, preferably by pressureless sintering, and also to the use of the sintered material as corrosion protection material for salt and metal melts, in particular cryolite-containing melts.

摘要翻译： 本发明涉及一种基于过渡金属二硼化物的烧结材料，其包含a）主相，90-99重量％的细粒过渡金属二硼化物或过渡金属二硼化物混合晶体，其包含至少两个过渡金属二硼化物或 这种二硼化物混合晶体或这种二硼化物混合晶体与一种或多种过渡金属二硼化物的混合物的混合物，其中过渡金属选自元素周期表IV至VI族，b）作为第二相，1-5％由 颗粒碳化硼和/或碳化硅的重量和c）任选地作为第三相，至多5重量％的非连续的含氧晶界相。 本发明还涉及用于制造这种烧结材料的粉状可烧结混合物，优选通过无压烧结来制造烧结材料的方法，以及使用烧结材料作为盐和金属熔体特别是冰晶石的防腐蚀材料 含有熔体。

公开(公告)号：US5939185A

公开(公告)日：1999-08-17

申请号：US959972

申请日：1997-10-29

申请人： Jochen Greim ,  Hubert Thaler ,  Michael Fundus

发明人： Jochen Greim ,  Hubert Thaler ,  Michael Fundus

IPC分类号： F16C33/24 ,  C04B35/565 ,  C04B35/573 ,  F16C33/04 ,  B32B5/16

CPC分类号： C04B35/565 ,  C04B35/62655 ,  C04B35/6267 ,  C04B35/636 ,  C04B35/638 ,  F16C33/043 ,  C04B2235/383 ,  C04B2235/3865 ,  C04B2235/3895 ,  C04B2235/402 ,  C04B2235/421 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/604 ,  C04B2235/608 ,  C04B2235/6567 ,  C04B2235/6581 ,  C04B2235/662 ,  C04B2235/77 ,  C04B2235/78 ,  C04B2235/783 ,  C04B2235/786 ,  C04B2235/94 ,  C04B2235/95 ,  C04B2235/9615 ,  C04B2235/9623 ,  Y10T428/259 ,  Y10T428/2918 ,  Y10T428/298

摘要： A bearing material of silicon carbide particularly useful for application in the hot water field is provided having improved corrosion resistance under increased thermal stresses wherein the bearing material is characterized by a predominantly course-grained silicon carbide matrix of pressureless sintered silicon carbide having a biamodal grain sized distribution wherein the biomodal grain size distribution is formed by from 50 to 90% by volume of prismatic, tabular, silicon carbide crystallites having a length of from 100 to 1500 .mu.m and from 10 to 50% by volume of prismatic tabular silicon carbide crystallites having a length of from 5 to

摘要翻译： 提供了特别适用于热水场中的碳化硅的轴承材料，其在增加的热应力下具有改善的耐腐蚀性，其中轴承材料的特征在于主要为无压烧结碳化硅的过程粒度碳化硅基体，其具有双峰值粒度 分布，其中生物体晶粒尺寸分布由50至90体积％的长度为100至1500μm和10至50体积％的棱柱形，片状碳化硅微晶形成，棱柱形片状碳化硅微晶具有 长度为5至<100亩。

公开(公告)号：US20090105062A1

公开(公告)日：2009-04-23

申请号：US12225473

申请日：2007-03-12

申请人： Hubert Thaler ,  Clemens Schmalzried ,  Frank Wallmeier ,  Christoph Lesniak

发明人： Hubert Thaler ,  Clemens Schmalzried ,  Frank Wallmeier ,  Christoph Lesniak

IPC分类号： C04B35/58

CPC分类号： C04B35/58064 ,  C04B35/58071 ,  C04B35/58078 ,  C04B35/62655 ,  C04B35/645 ,  C04B35/6455 ,  C04B2235/3218 ,  C04B2235/3813 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/3847 ,  C04B2235/3895 ,  C04B2235/402 ,  C04B2235/421 ,  C04B2235/428 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/604 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/6581 ,  C04B2235/661 ,  C04B2235/666 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/96 ,  C04B2235/9692

摘要： The invention relates to a sintered wear-resistant material which is based on transition metal diborides and comprises a) as main phase, 80-98.8% by weight of a fine-grained transition metal diboride or transition metal diboride mixed crystal comprising at least two transition metal diborides or mixtures of such diboride mixed crystals or mixtures of such diboride mixed crystals with one or more transition metal diborides, where the transition metals are selected from sub-groups IV to VI of the Periodic Table, b) as second phase, 0.2 to 5% by weight of a continuous, oxygen-containing grain boundary phase and c) as third phase, 1-15% by weight of particulate boron carbide and/or silicon carbide. The invention further relates to a pulverulent sinterable mixture for producing such a sintered material, process for producing the sintered material, preferably by pressureless sintering, and also the use of the sintered material for producing wear parts in general mechanical engineering, in particular chemical plant construction.

摘要翻译： 本发明涉及一种基于过渡金属二硼化物的烧结耐磨材料，其包含a）作为主相的80-98.8重量％的细粒过渡金属二硼化物或过渡金属二硼化物混合晶体，其包含至少两个转变 金属二硼化物或这种二硼化物混合晶体的混合物或这种二硼化物混合晶体与一种或多种过渡金属二硼化物的混合物，其中过渡金属选自元素周期表IV至VI族，b）作为第二相，0.2至 5重量％的连续的含氧晶界相，和c）作为第三相，1-15重量％的颗粒状碳化硼和/或碳化硅。 本发明还涉及一种用于制造这种烧结材料的粉状可烧结混合物，优选通过无压烧结来制造烧结材料的方法，以及在通常的机械工程，特别是化学工厂结构中使用用于制造耐磨部件的烧结材料 。

公开(公告)号：US06777076B2

公开(公告)日：2004-08-17

申请号：US09947798

申请日：2001-09-06

申请人： Hubert Thaler ,  Karl Schwetz ,  Armin Kayser

发明人： Hubert Thaler ,  Karl Schwetz ,  Armin Kayser

IPC分类号： C04B4180

CPC分类号： C04B35/565 ,  F16C33/043 ,  Y10T428/249967 ,  Y10T428/249969 ,  Y10T428/24999 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/30

摘要： Shaped body based on polycrystalline SiC and having a density of greater than 90% of its theoretical density and an adherent graphite layer on its surface, wherein the graphite layer is crystalline, has a thickness of 0.1-100 &mgr;m and has been produced by thermal surface decomposition of the SiC after it has been sintered to closed porosity.

摘要翻译： 基于多晶SiC的成形体，其密度大于其理论密度的90％，其表面上的粘附石墨层，其中石墨层是结晶的，其厚度为0.1-100μm，并由热表面 烧结后的SiC分解为闭孔。

公开(公告)号：US4743571A

公开(公告)日：1988-05-10

申请号：US19487

申请日：1987-02-26

申请人： Detlef Steinmann ,  Alfred Lipp ,  Hubert Thaler ,  Dietrich Lange

发明人： Detlef Steinmann ,  Alfred Lipp ,  Hubert Thaler ,  Dietrich Lange

IPC分类号： C04B35/584 ,  C04B35/593 ,  C04B35/58

CPC分类号： C04B35/593 ,  C04B35/584 ,  C04B35/5935

摘要： Polycrystalline sintered bodies are provided consisting of at least 66% by weight of a crystalline Si.sub.3 N.sub.4 phase, of which at least 90% by weight is in the beta-modification, and of up to 34% by weight of secondary intergranular grain boundary phases of oxide, carbide and/or nitride. At least 25% by weight of the secondary grain boundary phases consists of a quasi-ternary crystalline compound in the E.sub.1 --E.sub.2 --E.sub.3 triangle of the Ga.sub.2 O.sub.3 --La.sub.2 O.sub.3 -Al.sub.2 O.sub.3 ternary system called "Gala", the "Gala" compound being prepared from gallium oxide, lanthanum oxide and aluminum oxide prior to producing the sintered bodies.The polycrystalline sintered bodies are produced by sintering with and without application of pressure from silicon nitride powders having a portion of impurities not exceeding 4.0% by weight, sintering additives of oxides and optionally other refractory admixtures of carbides and/or nitrides. Powders of a quasi-ternary crystalline compound (Gala compound) are employed as at least one sintering additive prepared, prior to mixing with the remaining components and to sintering, from gallium oxide, lanthanum oxide and aluminum oxide by heating to temperatures from 1500.degree. C. to 1850.degree. C. When using at least 70% by weight of silicon nitride powder, there can be used up to 30% by weight of a crystalline "Gala" compound alone or mixed with other admixtures of oxides, carbides or nitrides, but altogether at least 1% by weight of a crystalline "Gala" compound must be present. The sintered bodies are especially tough and very hard and can be used for the machining of iron materials at high cutting speeds.

摘要翻译： 提供了多晶烧结体，其由至少66重量％的结晶Si 3 N 4相组成，其中至少90重量％为β改性，和至多34重量％的二次晶间相晶界 ，碳化物和/或氮化物。 二次晶界相的至少25重量％由称为“Gala”的Ga 2 O 3 -L 2 O 3 -Al 2 O 3三元体系的E1-E2-E3三角形中的准三元结晶化合物组成，“Gala”化合物由 氧化镓，氧化镧和氧化铝，然后再生产烧结体。 多晶烧结体是通过在不掺杂不超过4.0重量％的杂质的氮化硅粉末施加压力的情况下进行烧结来生产的，氧化物的烧结添加剂和任选的碳化物和/或氮化物的其它耐火材料混合物。 使用准三元结晶化合物（Gala化合物）的粉末作为至少一种烧结添加剂，在与剩余组分混合之前制备，并通过加热至1500℃的温度从氧化镓，氧化镧和氧化铝中烧结 当使用至少70重量％的氮化硅粉末时，可以单独使用至多30重量％的结晶“晚霜”化合物或与氧化物，碳化物或氮化物的其它混合物混合，但是 必须存在至少1重量％的结晶“晚间”化合物。 烧结体特别坚硬，非常硬，可用于高速切削铁材料的加工。

公开(公告)号：US5543370A

公开(公告)日：1996-08-06

申请号：US248388

申请日：1994-05-24

申请人： Lorenz Sigl ,  Hubert Thaler ,  Karl-Alexander Schwetz

发明人： Lorenz Sigl ,  Hubert Thaler ,  Karl-Alexander Schwetz

IPC分类号： B23B27/14 ,  B23P15/28 ,  C04B35/563 ,  C04B35/58 ,  C04B35/78 ,  C04B35/52

CPC分类号： C04B35/645 ,  C04B35/563 ,  C04B35/58071

摘要： A composite material includes boron carbide and titanium diboride in a volume ratio B.sub.4 C/TiB.sub.2 of from 90:10 to 10:90 parts and a proportion of elemental carbon greater than 2% by weight up to a maximum of 50% by weight, based on the boron carbide content. The composite material has a density greater than 92% TD, a hardness HK 0.1 greater than 2300, a four-point flexural strength greater than 400 MPa and a fracture toughness greater than 3.5 MPa.sqroot.m. The composite material is suitable for producing wear-resistant components or cutting tools.

摘要翻译： 复合材料包括体积比B4C / TiB2的碳化硼和二硼化钛为90:10至10:90份，并且元素碳的比例大于2重量％，最多达50重量％，基于 碳化硼含量。 复合材料的密度大于92％，硬度HK 0.1大于2300，四点弯曲强度大于400MPa，断裂韧性大于3.5MPa 2ROOT m。 复合材料适用于生产耐磨部件或切削工具。

公开(公告)号：US5505899A

公开(公告)日：1996-04-09

申请号：US260895

申请日：1994-06-16

申请人： Lorenz Sigl ,  Hubert Thaler ,  Karl-Alexander Schwetz

发明人： Lorenz Sigl ,  Hubert Thaler ,  Karl-Alexander Schwetz

IPC分类号： B24C5/04 ,  C04B35/563 ,  C04B35/64 ,  C01B31/00

CPC分类号： C04B35/645 ,  C04B35/563

摘要： A process for producing shaped bodies of boron carbide, metal diboride and carbon, which includes(a) homogeneously mixing pulverulent boron carbide with at least one pulverulent monocarbide of an element Ti, Zr, Hf, V, Nb and Ta in an amount corresponding to from 2% to 6% by weight of free carbon, based on the total weight of the boron carbide;(b) shaping this mixture into green bodies of a density of at least 50% TD;(c) heating the preformed body thus obtained to from about 1250.degree. C. to 1450.degree. C. with exclusion of oxygen in a sintering furnace and maintaining it within this temperature range for from 10 to 120 minutes; and(d) subsequently sintering the preformed body by heating to from 2100.degree. C. to 2250.degree. C.

摘要翻译： 一种生产碳化硼，金属二硼化物和碳的成型体的方法，其包括（a）将粉状碳化硼与元素Ti，Zr，Hf，V，Nb和Ta的至少一种粉状单体碳均匀混合，量相当于 基于碳化硼的总重量，2％至6％的游离碳; （b）将该混合物成形为至少50％TD密度的生坯; （c）将由此获得的预制体从约1250℃加热至1450℃，在烧结炉中除去氧气，并将其保持在该温度范围内10至120分钟; 和（d）随后通过加热至2100℃至2250℃烧结预成型体。

公开(公告)号：US4970036A

公开(公告)日：1990-11-13

申请号：US375867

申请日：1989-07-05

申请人： Hubert Thaler ,  Dietrich Lange ,  Karl A. Schwetz

发明人： Hubert Thaler ,  Dietrich Lange ,  Karl A. Schwetz

IPC分类号： C04B35/584 ,  C04B35/626

CPC分类号： C04B35/584

摘要： The invention relates to a process for producing green compacts by the slip-casting process, injection-molding process or extrusion process from sinterable mixtures based on a starting powder mixture containing silicon nitride, and, if appropriate, aluminum nitride and/or alumina and other oxides as sinter aids. The dispersant and binder used is a magnesium chloride hydrate as a mixture with magnesium oxide and water and, after molding, the mixtures are hardened at temperatures from 30.degree. to 60.degree. C. In addition, ceramic fibers, such as silicon carbide, can also be processed as fillers. The green compacts thus produced are sufficiently stable, so that they can be worked mechanically.

摘要翻译： 本发明涉及通过基于含有氮化硅的起始粉末混合物以及如果适用的氮化铝和/或氧化铝等的可烧结混合物的流延法，注射成型法或挤出法生产压坯的方法 氧化物作为烧结助剂。 使用的分散剂和粘合剂是与氧化镁和水的混合物的氯化镁水合物，并且在模制之后，混合物在30℃至60℃的温度下硬化。此外，陶瓷纤维如碳化硅也可以 作为填料加工。 这样生产的绿色压块是足够稳定的，使得它们可以机械加工。