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21. 发明授权

US07375044B2 Process for making a ceramic body containing alumina and boron carbide 失效
标题翻译：制造含有氧化铝和碳化硼的陶瓷体的方法
公开(公告)号：US07375044B2
公开(公告)日：2008-05-20
申请号：US11648984
申请日：2007-01-03
申请人： Russell L. Yeckley , Shanghua Wu
发明人： Russell L. Yeckley , Shanghua Wu
IPC分类号： C04B35/563 , C04B35/117
CPC分类号： C04B35/117 , B82Y30/00 , C04B35/6303 , C04B35/64 , C04B35/645 , C04B35/803 , C04B2235/3206 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3241 , C04B2235/3244 , C04B2235/3246 , C04B2235/3284 , C04B2235/3804 , C04B2235/3813 , C04B2235/3821 , C04B2235/3843 , C04B2235/3856 , C04B2235/3886 , C04B2235/3895 , C04B2235/40 , C04B2235/401 , C04B2235/402 , C04B2235/422 , C04B2235/424 , C04B2235/524 , C04B2235/5244 , C04B2235/5276 , C04B2235/5409 , C04B2235/5436 , C04B2235/5445 , C04B2235/5454 , C04B2235/5463 , C04B2235/549 , C04B2235/656 , C04B2235/661 , C04B2235/77 , C04B2235/78 , C04B2235/786 , C04B2235/80 , C04B2235/96 , Y10T82/10 , Y10T82/141 , Y10T407/27
摘要： A process for making a ceramic body that includes the following steps: providing a starting powder mixture, the starting powder mixture comprises between about 15 volume percent and about 35 volume percent boron carbide powder and at least about 50 volume percent alumina powder and no more than about 5 volume percent of a sintering aid; and consolidating the powder mixture at a temperature equal to between about 1400 degrees Centigrade and 1850 degrees Centigrade to achieve a ceramic with a density equal to greater than 99 percent of theoretical density.
摘要翻译：一种制造陶瓷体的方法，包括以下步骤：提供起始粉末混合物，起始粉末混合物包含约15体积％至约35体积％的碳化硼粉末和至少约50体积％的氧化铝粉末，不超过约5体积％的烧结助剂; 并将该混合物在约1400摄氏度和1850摄氏度之间的温度下固化，以达到密度等于理论密度的99％以上的陶瓷。

22. 发明授权

US07252795B2 High thermal conductivite element, method for manufacturing same, and heat radiating system 有权
标题翻译：高导热元件，制造方法和散热系统
公开(公告)号：US07252795B2
公开(公告)日：2007-08-07
申请号：US11242907
申请日：2005-10-05
申请人： Toyokazu Ozaki , Akira Taomoto , Mitsuru Hashimoto , Masahiro Deguchi , Motoshi Shibata
发明人： Toyokazu Ozaki , Akira Taomoto , Mitsuru Hashimoto , Masahiro Deguchi , Motoshi Shibata
IPC分类号： B29C35/02
CPC分类号： C04B35/63468 , B82Y30/00 , C04B35/522 , C04B2235/422 , C04B2235/425 , C04B2235/427 , C04B2235/48 , C04B2235/526 , C04B2235/5284 , C04B2235/5436 , C04B2235/5445 , C04B2235/6562 , C04B2235/6565 , C04B2235/6567 , C04B2235/77 , C04B2235/78 , C04B2235/80 , C04B2235/9607 , H01L23/3733 , H01L2924/0002 , Y10T428/30 , H01L2924/00
摘要： It is an object of the present invention to provide a high thermal conductive element that has improved thermal conductivity in the layer direction while retaining the high thermal conductivity characteristics in the planar direction possessed by graphite. The present invention is a high thermal conductive element in which carbon particles are dispersed in a graphite-based matrix, wherein (1) the c axis of the graphene layers constituting the graphite are substantially parallel, (2) the thermal conductivity κ∥ in a direction perpendicular to the c axis is at least 400 W/m·k and no more than 1000 W/m·k, and (3) the thermal conductivity κ⊥ in a direction parallel to the c axis is at least 10 W/m·k and no more than 100 W/m·k.
摘要翻译：本发明的目的是提供一种在层状方向上具有改善的导热性，同时保持石墨所具有的平面方向上的高导热特性的高导热性元件。本发明是碳粒子分散在基于石墨的基质中的高导热性元素，其中，（1）构成石墨的石墨烯层的c轴基本上平行，（2）a中的导热系数kappa 垂直于c轴的方向为至少400W / mk且不超过1000W / mk，并且（3）平行于c轴的方向的热导率kappa⊥为至少10W / mk且不大于 100 W / mk

23. 发明申请

US20070179040A1 Ai203 dispersion-strengthened ti2ain composites and a method and producing the same 失效
标题翻译： Al 2 O 3分散强化Ti 2 AlN复合材料及其制造方法
公开(公告)号：US20070179040A1
公开(公告)日：2007-08-02
申请号：US11629559
申请日：2005-07-15
申请人： Juying Li , Yuyou Cui , Rui Yang
发明人： Juying Li , Yuyou Cui , Rui Yang
IPC分类号： C04B35/582 , C04B35/58
CPC分类号： C04B35/58014 , B82Y30/00 , C04B35/117 , C04B35/6268 , C04B35/645 , C04B35/6455 , C04B2235/3217 , C04B2235/3886 , C04B2235/402 , C04B2235/404 , C04B2235/46 , C04B2235/465 , C04B2235/5436 , C04B2235/5445 , C04B2235/5454 , C04B2235/6581 , C04B2235/662 , C04B2235/78 , C04B2235/785 , C04B2235/80 , C04B2235/9684
摘要： The invention provides Al2O3 dispersion-strengthened Ti2AlN composites, wherein Ti2AlN matrix and Al2O3 strengthening phase both are reactively formed in situ. The volume fraction of Al2O3 is 5% to 50%; the particle size of Al2O3 ranges from 500 nm to 2 μm, with the mean size of Al2O3 particles about 0.8 μm to 1.2 μm; the shape of Ti2AlN grain is plate-like about 80 nm to 120 nm thick and 0.5 μm to 2 μm long. The composites exhibit excellent deformability at high temperature under compression and flexure stresses, and possess excellent oxidation resistance at 1100° C. to 1350° C. for long time (100 h). The composites show typical metallic conductor behavior and the electrical resistivity at room temperature is 0.3 to 0.8 μΩ·m. The invention also provides a method for preparing the same: First, nanoparticles in Ti—Al binary system were prepared in continuous way by hydrogen plasma-metal reaction (HPMR) using Ti—Al alloy rods with Al content 20% to 60% by atom, or pure Al rods and pure Ti rods. The atmosphere used in HPMR is the mixture atmosphere of nitrogen-containing gas, H2 and Ar, with total pressure of 0.8 to 1.2 atm, wherein volume ratio of H2 and Ar is 1:0.8-1.2, and volume fraction of nitrogen-containing gas is 0 to about 20%. Second, the nanoparticles were compacted by vacuum hot pressing at temperature of 800° C. to 1200° C., pressure of 40 MPa to 60 MPa, time of 4 h to 6 h, and vacuum of 2×10−2 Pa to 5×10−3 Pa.
摘要翻译：本发明提供了Al 2 N 3 O 3分散强化Ti 2 AlN复合材料，其中Ti 2 AlN基体和Al 2N 3 O 3强化相都在原位反应形成。 Al 2 O 3 3的体积分数为5％至50％; Al 2 O 3 3的颗粒尺寸范围为500nm至2μm，平均尺寸为Al 2 O 3 3 < / SUB颗粒约0.8〜1.2μm; Ti 2 AlN晶粒的形状是板状，约80nm至120nm厚，0.5μm至2μm长。复合材料在压缩和挠曲应力下在高温下表现出优异的变形性，并且在1100℃至1350℃长时间（100小时）下具有优异的抗氧化性。复合材料表现出典型的金属导体性能，室温下的电阻率为0.3〜0.8 muOmega.m。本发明还提供了一种制备方法：首先，使用Al含量为20〜60原子％的Ti-Al合金棒，通过氢等离子体 - 金属反应（HPMR）连续制备Ti-Al二元体系中的纳米粒子，或纯Al棒和纯Ti棒。 HPMR中使用的气氛是含氮气体H 2 2和Ar的混合气氛，总压力为0.8至1.2atm，其中H 2 2和 Ar为1：0.8-1.2，含氮气体的体积分数为0〜20％。第二，通过真空热压在800℃至1200℃，40MPa至60MPa的压力，4小时至6小时的时间和2×10 -2真空的压力下压制纳米颗粒， SUP> Pa至5×10 -3 Pa。

24. 发明授权

US07153484B2 Porous Si3N4 producing method 失效
标题翻译：多孔Si3N4生产方法
公开(公告)号：US07153484B2
公开(公告)日：2006-12-26
申请号：US10750870
申请日：2004-01-05
申请人： Takeshi Satoh , Jin-joo Park
发明人： Takeshi Satoh , Jin-joo Park
IPC分类号： C01B21/068
CPC分类号： C04B35/638 , C04B35/584 , C04B35/591 , C04B35/6261 , C04B35/62625 , C04B38/0074 , C04B2111/00793 , C04B2235/3224 , C04B2235/3225 , C04B2235/428 , C04B2235/46 , C04B2235/6021 , C04B2235/604 , C04B2235/656 , C04B2235/668 , C04B2235/728 , C04B2235/766 , C04B2235/77 , C04B2235/78 , C04B2235/788
摘要： A producing method of a porous Si3N4 having high porosity and formed of Si3N4 particles having a high aspect ratio includes the following steps. A compound of a rare earth element as a first sintering agent is mixed in an amount of 7.5–45 parts by mass, in terms of an oxide of the element, with respect to 100 parts by mass of Si powder to obtain mixed powder. A binder is added to the mixed powder, which is then molded into a molded body. The molded body is heated in a nitrogen atmosphere to 300–500° C. to remove the binder. The binder-removed body is heated in a nitrogen atmosphere to 1350–1500° C. for nitriding. The nitrided body is then sintered at 1750–1900° C. at a nitrogen pressure of 0.1–1 atmosphere.
摘要翻译：一种多孔Si 3 N 4 N 4的制造方法，该多孔Si 3 N 4 N具有高孔隙率并由具有3/3 N 4 N 4 N 4 高宽比包括以下步骤。作为第一烧结剂的稀土元素的化合物以相对于100质量份Si粉末为7.5〜45质量份的元素的氧化物的量混合，得到混合粉末。将粘合剂加入到混合粉末中，然后将其模塑成型体。将模塑体在氮气气氛中加热至300-500℃以除去粘合剂。将粘合剂去除体在氮气气氛中加热至1350-1500℃进行氮化。然后将氮化体在1750-1900℃下在0.1-1大气压的氮气压力下烧结。

25. 发明申请

US20060178265A1 Ceramic support capable of supporting catalyst, catalyst-ceramic body and processes for producing same 有权
标题翻译：能够支撑催化剂，催化剂 - 陶瓷体的陶瓷载体及其制造方法
公开(公告)号：US20060178265A1
公开(公告)日：2006-08-10
申请号：US11340542
申请日：2006-01-27
申请人： Hideki Kita , Jayaseelan Doni , Naoki Kondoh , Shunkichi Ueno , Kazuhiko Koike , Keiichi Yamada , Tomohiko Nakanishi
发明人： Hideki Kita , Jayaseelan Doni , Naoki Kondoh , Shunkichi Ueno , Kazuhiko Koike , Keiichi Yamada , Tomohiko Nakanishi
IPC分类号： B01J21/04
CPC分类号： C04B35/195 , B01J21/16 , B01J35/04 , C04B35/6303 , C04B38/0006 , C04B2111/0081 , C04B2235/3213 , C04B2235/3218 , C04B2235/3229 , C04B2235/3272 , C04B2235/3409 , C04B2235/3418 , C04B2235/3445 , C04B2235/349 , C04B2235/445 , C04B2235/5445 , C04B2235/72 , C04B2235/78 , C04B2235/96 , C04B2235/9607 , C04B38/0009
摘要： A needle-shaped ceramic body having as its base material a cordierite porous body having a high specific surface area and superior thermal shock resistance, and a needle-shaped catalyst-ceramic body are provided. The present invention relates to a needle-shaped ceramic body having as its base material a needle-shaped cordierite in which the tips thereof are rounded, a needle-shaped catalyst-ceramic body loaded with a catalyst, and a method of production of a ceramic body in which a portion of a raw material (fluoride) gasified by a reaction between raw materials is grown into a needle like shape on the metal catalyst (Fe), wherein the tips of needle-shaped particles are rounded, using a vapor-liquid-solid (VLS) reaction, in a raw material burning process. A honeycomb structure composed of the needle-shaped ceramic for supporting a catalyst is provided, in which decreases in specific surface area caused by sintering can be inhibited, and it enables early catalyst activation due to the low thermal capacity, and has low pressure loss.
摘要翻译：提供具有高比表面积和优异的耐热冲击性的堇青石多孔体作为其基材的针状陶瓷体和针状催化剂陶瓷体。本发明涉及一种针状陶瓷体，其具有作为其基材的尖端为圆形的针状堇青石，装有催化剂的针状催化剂陶瓷体，以及陶瓷的制造方法将通过原料之间的反应气化的一部分原料（氟化物）的一部分在金属催化剂（Fe）上生长成针状形状的主体，其中针状颗粒的尖端是圆形的，使用气液 - 固体（VLS）反应，在原料燃烧过程中。提供了由用于支撑催化剂的针状陶瓷构成的蜂窝结构体，其中可以抑制由烧结引起的比表面积的减小，并且由于热容量低，能够使催化剂早期活化，并且压力损失低。

26. 发明申请

US20060057014A1 Iron silicide sputtering target and method for production thereof 有权
标题翻译：铁硅化物溅射靶及其制造方法
公开(公告)号：US20060057014A1
公开(公告)日：2006-03-16
申请号：US10527320
申请日：2003-09-01
申请人： Kunihiro Oda , Ryo Suzuki
发明人： Kunihiro Oda , Ryo Suzuki
IPC分类号： C01B33/06 , B22F1/02
CPC分类号： C04B35/64 , B22F2998/00 , B22F2998/10 , C04B35/58085 , C04B35/6261 , C04B35/62665 , C04B35/645 , C04B35/6455 , C04B2235/3891 , C04B2235/405 , C04B2235/428 , C04B2235/5436 , C04B2235/6581 , C04B2235/6582 , C04B2235/661 , C04B2235/666 , C04B2235/72 , C04B2235/721 , C04B2235/722 , C04B2235/723 , C04B2235/724 , C04B2235/726 , C04B2235/727 , C04B2235/77 , C04B2235/78 , C04B2235/786 , C23C14/3414 , B22F3/105 , B22F3/14 , B22F3/15 , B22F9/082 , B22F3/10
摘要： Provided is an iron silicide sputtering target in which the oxygen as the gas component in the target is 1000 ppm or less, and a manufacturing method of such iron silicide sputtering target including the steps of melting/casting high purity iron and silicon under high vacuum to prepare an alloy ingot, subjecting the ingot to gas atomization with inert gas to prepare fine powder, and thereafter sintering the fine powder. With this iron suicide sputtering target, the amount of impurities will be reduced, the thickness of the βFeSi2 film during deposition can be made thick, the generation of particles will be reduced, a uniform and homogenous film composition can be yielded, and the sputtering characteristics will be favorable. The foregoing manufacturing method is able to stably produce this target.
摘要翻译：提供了一种铁化硅溅射靶，其中作为靶中的气体成分的氧为1000ppm以下，以及这种铁硅化物溅射靶的制造方法，其包括在高真空下熔融/铸造高纯度铁和硅的步骤制备合金锭，使该锭用惰性气体进行气体雾化以制备细粉末，然后烧结该细粉末。通过这种铁硅化物溅射靶，杂质的量将减少，沉积期间的βFeSi2膜的厚度可以变厚，颗粒的产生将减少，均匀且均匀的膜组成可以得到良好的溅射特性。上述制造方法能够稳定地产生该目标。

27. 发明申请

US20050132658A1 Method of making abrasive particles 审中-公开
标题翻译：制造磨粒的方法
公开(公告)号：US20050132658A1
公开(公告)日：2005-06-23
申请号：US10740096
申请日：2003-12-18
申请人： Ahmet Celikkaya , Thomas Anderson , Donna Bange
发明人： Ahmet Celikkaya , Thomas Anderson , Donna Bange
IPC分类号： B24D3/00 , C04B35/111 , C04B35/117 , C04B35/119 , C04B35/44 , C09K3/14
CPC分类号： C09K3/1409 , C04B35/111 , C04B35/117 , C04B35/119 , C04B35/44 , C04B35/6261 , C04B35/6262 , C04B35/62625 , C04B35/62665 , C04B2235/3206 , C04B2235/3217 , C04B2235/3218 , C04B2235/322 , C04B2235/3222 , C04B2235/3225 , C04B2235/3227 , C04B2235/3418 , C04B2235/528 , C04B2235/5427 , C04B2235/764 , C04B2235/78 , C04B2235/785 , C04B2235/80 , C04B2235/96
摘要： Methods for making fused, polycrystalline ceramic abrasive particles. Fused, polycrystalline ceramic abrasive particles made according to the present invention are useful, for example, as abrasive particles in abrasive articles.
摘要翻译：制造熔融多晶陶瓷磨料颗粒的方法。根据本发明制备的熔融多晶陶瓷磨料颗粒可用作例如磨料制品中的磨料颗粒。

28. 发明申请

US20030104921A1 Silicon nitride ceramic with a high mechanical strength at room temperature and at elevated temperature 审中-公开
标题翻译：在室温和高温下具有高机械强度的氮化硅陶瓷
公开(公告)号：US20030104921A1
公开(公告)日：2003-06-05
申请号：US10147919
申请日：2002-05-20
申请人： CERAMTEC AG INNOVATIVE CERAMIC ENGINEERING
发明人： Guenter Riedel , Hartmut Xruener , Hartmut Kruener , Matthias Steiner , Peter Stingl
IPC分类号： C04B035/599
CPC分类号： C04B35/6455 , C04B35/584 , C04B35/5935 , C04B35/597 , C04B35/62655 , C04B35/6303 , C04B35/632 , C04B35/63416 , C04B35/63488 , C04B2235/3217 , C04B2235/3225 , C04B2235/3244 , C04B2235/3463 , C04B2235/3873 , C04B2235/3882 , C04B2235/5409 , C04B2235/604 , C04B2235/767 , C04B2235/77 , C04B2235/78 , C04B2235/784 , C04B2235/785 , C04B2235/786 , C04B2235/788 , C04B2235/80 , C04B2235/85 , C04B2235/94 , C04B2235/96
摘要： The invention relates to cast parts which contain at least 87 wt. % silicon nitride and up to 13 wt. % of an additive combination comprised of Al2O3 and Y2O3. The initial composition of the mass formulation starts with Y2O3/Al2O3 ratios of less than 1.1, preferably with Y2O3 Al2O3 ratios of 0.2 to 1.09. 1% to 20% of the Y2O3 portion can thus be substituted by an additional element of the group IVb of the periodic table or by the oxide thereof. The cast parts can comprise up to 1.0 wt. % HfO2 and/or ZrO2. Said cast parts preferably have a thickness >98% of the theoretic thickness. At room temperature, the bending strength of the inventive cast parts amounts to null1100 MPa and amounts to null850 MPa at 1000null C. The inventive cast parts correspond to the formula Si6nullzAlzOzN8nullz. The degree of substitution z thus amounts to 0.20 to 0.60, preferably from 0.22 to 0.54, especially from 0.3 to 0.35.
摘要翻译：本发明涉及含有至少87重量％％的氮化硅和高达13wt。％的由Al2O3和Y2O3组成的添加剂组合。质量配方的初始组成开始于Y2O3 / Al2O3比小于1.1，优选为Y2O3 / Al2O3比为0.2至1.09。因此，Y 2 O 3部分的1％至20％可以被周期表IVb族的另外的元素或其氧化物所取代。铸件可以包含至多1.0重量％％HfO 2和/或ZrO 2。所述铸造件优选具有理论厚度的> 98％的厚度。在室温下，本发明铸造件的弯曲强度达到> = 1100MPa，在1000℃下达到> = 850MPa。本发明的铸件对应于式Si 6-z Al z O z N 8-z。因此，取代度z为0.20〜0.60，优选为0.22〜0.54，特别优选为0.3〜0.35。

29. 发明申请

US20020175451A1 Method of making wall-flow monolith filter 有权
标题翻译：制造墙流整体式过滤器的方法
公开(公告)号：US20020175451A1
公开(公告)日：2002-11-28
申请号：US10131652
申请日：2002-04-23
发明人： Fredrick W. Vance , Sten A. Wallin
IPC分类号： C04B033/32
CPC分类号： C04B35/6264 , B01D39/2068 , B01D53/945 , B01D53/9454 , B01J35/04 , B28B11/006 , C04B35/185 , C04B35/6263 , C04B35/6365 , C04B38/0006 , C04B38/0012 , C04B2111/0081 , C04B2235/78 , F01N3/0222 , F01N3/035 , F01N2330/06 , F01N2370/22 , Y02T10/22 , C04B35/00
摘要： A ceramic honeycomb wall-flow filter is prepared by plugging channels in a ceramic honeycomb by a method comprising the following. First, a mixture comprised of a dispersing liquid and ceramic powder is formed. Next, the mixture is inserted on one end of the channel in an unplugged ceramic honeycomb such that the mixture flows to the other end where the mixture collects and forms a plugged ceramic honeycomb. Then, the plugged ceramic honeycomb is heated to a temperature sufficient to sinter the plugged ceramic honeycomb to form a porous sintered plugged ceramic honeycomb.
摘要翻译：陶瓷蜂窝壁流过滤器是通过以下方法将陶瓷蜂窝中的通道堵塞来制备的。首先，形成由分散液和陶瓷粉末构成的混合物。接下来，将混合物以未插入的陶瓷蜂窝体插入通道的一端，使得混合物流到混合物收集的另一端并形成堵塞的陶瓷蜂窝体。然后，将堵塞的陶瓷蜂窝体加热到足以烧结堵塞的陶瓷蜂窝体以形成多孔烧结堵塞的陶瓷蜂窝体的温度。

30. 发明申请

US20020058580A1 High dielectric constant very low fired X7R ceramic capacitor, and powder for making 失效
标题翻译：高介电常数非常低的X7R陶瓷电容器和粉末制造
公开(公告)号：US20020058580A1
公开(公告)日：2002-05-16
申请号：US10036205
申请日：2001-12-29
发明人： Galeb H. Maher , Samir Maher
IPC分类号： C04B035/468 , C04B035/495
CPC分类号： C04B35/6303 , B32B18/00 , B32B2311/08 , C04B35/465 , C04B35/468 , C04B35/4682 , C04B35/628 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3229 , C04B2235/3232 , C04B2235/3236 , C04B2235/3239 , C04B2235/3244 , C04B2235/3251 , C04B2235/3255 , C04B2235/3256 , C04B2235/3258 , C04B2235/3262 , C04B2235/3294 , C04B2235/3409 , C04B2235/365 , C04B2235/5436 , C04B2235/5445 , C04B2235/656 , C04B2235/77 , C04B2235/78 , C04B2235/785 , C04B2235/786 , C04B2235/79 , C04B2237/346 , C04B2237/40 , C04B2237/408 , H01G4/1218 , H01G4/1227 , H01G4/1245 , H01G4/30
摘要： A dielectric ceramic powder and multilayer ceramic capacitors made from the powders are disclosed. A dielectric start powder mixture includes at least ninety weight percent essentially pure barium titanate powder having an average particle size of from 0.2 to 1.2 microns; from 0.2 to 2.5 weight percent of barium lithium borosilicate; from 0.1 to 0.3 weight percent of MnCO3; 0.4 to 1.50 weight percent Nb205 or a niobate compound, or a molar equivalent of Ta2O5 or a tantalum compound as a grain growth inhibitor; and, 0.4 to 1.2 weight percent of gadolinium oxide (Gd2O3). The start powder mixture is calcined and then sintered in an open zirconia setter at from 950null C. to 1,025null C. to produce a dielectric ceramic body that satisfies X7R capacitor performance characteristics; that includes no hazardous heavy metal oxides; and, that may include silver-palladium electrodes having 85 weight percent or more of silver.
摘要翻译：公开了由粉末制成的电介质陶瓷粉末和多层陶瓷电容器。电介质起始粉末混合物包含平均粒度为0.2-1.2微米的至少90重量％的基本上纯的钛酸钡粉末; 0.2至2.5重量％的硼硅酸钡锂; 0.1〜0.3重量％的MnCO 3; 0.4〜1.50重量％的Nb 2 O 5或铌酸盐化合物，或摩尔当量的Ta 2 O 5或钽化合物作为晶粒生长抑制剂; 和0.4〜1.2重量％的氧化钆（Gd 2 O 3）。将起始粉末混合物煅烧，然后在开放式氧化锆固定器中在950℃至1050℃下烧结以制备满足X7R电容器性能特征的电介质陶瓷体; 不含有害重金属氧化物; 并且可以包括具有85重量％或更多银的银 - 钯电极。

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