摘要:
An La2O3 powder and an SiO2 powder are mixed with each other, and then heated. By heating, a porous material of LaXSi6O1.5X+12 (8≦X≦10) as a composite oxide is produced. Subsequently, the porous material is pulverized to obtain a powder, and the powder is added to a solvent to prepare a slurry. The slurry is solidified in a magnetic field to prepare a compact. After that, the compact is sintered, and an oxide ion conductor is obtained thereby.
摘要翻译:将二氧化钛粉末和二氧化硅粉末彼此混合,然后加热。 通过加热作为复合氧化物的La xSiO 6 O 1.5 X + 12(8 = = X 10)的多孔材料 生产。 随后,将多孔材料粉碎以获得粉末,并将粉末加入到溶剂中以制备浆料。 将浆料在磁场中固化以制备成型体。 之后,将烧结体烧成,得到氧化物离子导体。
摘要:
A light-emitting device and illumination apparatus using the same are provided. The light-emitting device includes a semiconductor light-emitting element that emits blue-violet or blue light and a fluorescent material that absorbs the light emitted by the semiconductor light-emitting element and emits fluorescence of wavelengths different from the light, wherein the fluorescent material includes a mixture of a first fluorescent material, a second fluorescent material that has a longer emission wavelength than that of the first fluorescent material, and a third fluorescent material that has a longer emission wavelength than the second fluorescent material, and the first fluorescent material is a europium-activated β-SiAlON fluorescent material, the second fluorescent material is a europium-activated α-SiAlON fluorescent material, and the third fluorescent material is a nitride crystalline red fluorescent material of a general formula of (Ca,Eu)AlSiN3. The illumination apparatus includes a light source including a light emitting device as described above.
摘要:
This invention relates to a dense ceramics having ESD dissipative characteristics, tunable volume and surface resistivities in semi-insulative range (103-1011 Ohm-cm), substantially pore free, high flexural strength, light colors, for desired ESD dissipation characteristics, structural reliability, high vision recognition, low wear and particulate contamination to be used as ESD dissipating tools, fixtures, load bearing elements, work surfaces, containers in manufacturing and assembling electrostatically sensitive microelectronic, electromagnetic, electro-optic components, devices and systems.
摘要:
Ceramic material of high impact strength, in particular based on Si3N4 or ZrO2, having an HV10 hardness of not more than 15.5 GPa and an E modulus at room temperature of less than 330 GPa, wherein the material contains 0.2 to 5 wt. % of carbon particles which have a maximum particle size of 5 μm, a process for the preparation of the ceramic material and the use thereof, in particular as roller bodies in bearings.
摘要翻译:具有高冲击强度的陶瓷材料,特别是基于具有不大于15.5GPa的HV10硬度的Si 3 N 4 N 3或ZrO 2 2 和室温下的E模量小于330GPa,其中该材料含有0.2至5wt。 最大粒度为5μm的碳粒子的%,陶瓷材料的制备方法及其用途,特别是作为轴承中的辊体。
摘要:
A high-strength, low-temperature-sintered ceramic composition having a structure comprising a SrAl2Si2O8 Crystal and an Al2O3 crystal, the SrAl2Si2O8 crystal being composed of hexagonal SrAl2Si2O8 alone or hexagonal SrAl2Si2O8 and monoclinic SrAl2Si2O8, and a peak intensity ratio represented by I101/(I101+I002)×100 being 5% or more in an X-ray diffraction measurement by a Cu-Kα line, wherein I101 represents a peak intensity of a (101) plane of the hexagonal SrAl2Si2O8, and I002 represents a peak intensity of a (002) plane of the monoclinic SrAl2Si2O8.
摘要翻译:具有包含SrAl 2 Si 2 O 8 O 8晶体的结构的高强度,低温烧结陶瓷组合物和Al 2 sub> 3 sub> 3晶体,SrAl 2 Si 2 O 2 O 8晶体由六方晶 单独的SrAl 2 Si 2 O 2或六方晶系SrAl 2 Si 2 O 2, SUB> 8和单斜晶系SrAl 2 Si 2 N 2 O 8,以及由I< 101> 在通过Cu-Kalpha线的X射线衍射测定中,x100为5%以上,其中I sub> /(I> 101 + I 002 002) 101 SUB>表示六方晶系SrAl 2 Si 2 O 8 N的(101)面的峰强度,I 002 SUB>表示单斜晶SrAl 2 Si 2 O 8 N(002)面的峰强度。
摘要:
A soft hexagonal ferrite sintered material includes crystal particles of M-type hexagonal ferrite corresponding to a general chemical formula MFe12O19 wherein M is at least one element selected from the group consisting of Ba, Sr and Pb. Crystal particles having particle diameters of 5 μm to 100 μm are extracted from a sintered material produced from a precursor powder mixture. The extracted particles as seed crystals are mixed with a calcined powder comprising fine crystals having the above composition and particle diameters of 0.5 μm to 3 μm, then is sintered until the intended particle growth of the crystal particles in the sintered material is achieved to give an average particle diameter of 30 μm to 500 μm.
摘要翻译:软六角铁氧体烧结材料包括对应于一般化学式MFe 12 O 19的M型六角铁氧体的晶体颗粒,其中M是选自以下的至少一种元素: 由Ba,Sr和Pb组成。 从由前体粉末混合物制备的烧结材料中提取粒径为5〜100μm的结晶粒子。 将作为晶种的提取的颗粒与包含上述组成和粒径为0.5μm至3μm的细晶体的煅烧粉末混合,然后烧结直到实现烧结材料中晶体颗粒的预期颗粒生长,得到 平均粒径为30〜500μm。
摘要:
A method for producing cubic boron nitride includes maintaining hexagonal boron nitride in the presence of a catalyst substance under conditions where cubic boron nitride remains thermodynamically stable to thereby transform hexagonal boron nitride into cubic boron nitride, wherein the catalyst substance contains LiMBN2, in which M represents Ca, Sr, Ba, Ra, Be, or Mg, and at least one species selected from the group consisting of alkali metals, alkaline earth metals, nitrides thereof and boronitrides thereof. Any one of the LiMBN2, alkali metals, alkaline earth metals, nitrides thereof and boronitrides thereof has an oxygen content of 1% or less. As a result, the percent transformation into cubic boron nitride can be considerably enhanced, and the cubic boron nitride obtained exhibits high mechanical strength.
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 ≧1100 MPa and amounts to ≧850 MPa at 1000° C. The inventive cast parts correspond to the formula Si6-zAlzOzN8-z. 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。 由Al 2 O 3 3 Y 3和Y 2 O 3 3组成的添加剂组合的%。 质量配方的初始组成开始于Y 2 O 3 / N 2 O 3 O 3比率小于 1.1,优选为0.2〜1.09的Y 2 O 3 3 O 3 O 3比率。 1%至20%的Y 2 O 3 O 3部分可以被周期表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 2和/或ZrO 2 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,并且在1000℃下达到> = 850MPa。本发明的铸造件对应于式Si 6-z Al z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z z 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。
摘要:
A ferrite magnet obtained by adding either an oxide of Mn or oxides of Mn and Co to a ferrite having a hexagonal M-type magnetoplumbite structure, in which a portion of Sr, Ba, Pb or Ca is replaced with at least one element that is selected from the group consisting of the rare earth elements (including Y) and Bi and that always includes La, during the fine pulverization process thereof, and then subjecting the mixture to re-calcining and/or sintering process(es). By adding a small amount of the element Mn or elements Mn and Co to the ferrite already having the hexagonal M-type magnetoplumbite structure during the fine pulverization process thereof, the magnetic properties can be improved.
摘要:
A dielectric material composition including a metal oxide represented by a general formula, Y1−xM1xMn1−yM2yOm. M1 is Y, Ho, Er, Yb, Tm, or Lu. M2 is Ti, Zr, V, Mo, Mg, Cu, or Zn. X is a number of 0 to 1. Y is a number of 0 to 1. The metal oxide is of high dielectric constant and has the properties of ferroelectricity, piezoelectricity, and pyroelectricity.
摘要翻译:一种介电材料组合物,其包含由通式Y 1-x M 1,O 2,M 1,Y 2, M / O 2 / O 2。 Y 1,Y 1,H 2,Y 1,T m或Lu。 M 2是Ti,Zr,V,Mo,Mg,Cu或Zn。 X为0〜1的数.Y为0〜1的数。金属氧化物的介电常数高,具有铁电性,压电性,热电性等特性。