摘要:
A metal nitride material for a thermistor consists of a metal nitride represented by the general formula: MxAlyNz (where “M” represents at least one of Fe, Co, Mn, Cu, and Ni, 0.70≦y/(x+y)≦0.98, 0.4≦z≦0.5, and x+y+z=1), wherein the crystal structure thereof is a hexagonal wurtzite-type single phase. A method for producing the metal nitride material for a thermistor includes a deposition step of performing film deposition by reactive sputtering in a nitrogen-containing atmosphere using an M-Al alloy sputtering target (where “M” represents at least one of Fe, Co, Mn, Cu, and Ni).
摘要翻译:用于热敏电阻的金属氮化物材料由以下通式表示的金属氮化物组成:MxAlyNz(其中“M”表示Fe,Co,Mn,Cu和Ni中的至少一种,0.70和nlE; y /(x + y) ≦̸ 0.98,0.4≦̸ z≦̸ 0.5和x + y + z = 1),其中其晶体结构是六方纤锌矿型单相。 一种热敏电阻用金属氮化物的制造方法,其特征在于,使用M-Al合金溅射靶,在含氮气氛中,通过反应性溅射进行成膜,其中,“M”表示Fe,Co, Mn,Cu和Ni)。
摘要:
An oxide ceramic represented by the general formula [Sr2−xBaxCo2−y(ZnuNi1−u)yFe12−zAlzO22]. In the formula, 0.7≦x≦1.3 and 0.8≦z≦1.2. y is 0≦y≦0.8 when 0.5≦u≦1.0 and is 0≦y≦1.6 when 0≦u≦0.5. y is preferably 0.4 or less. Further, a variable inductor as a ceramic electronic component has a component base body formed from the oxide ceramic.
摘要:
An object of the present invention is to provide a ferrite magnetic material which can provide a permanent magnet retaining high Br and HcJ as well as having high Hk/HcJ. The ferrite magnetic material according to a preferred embodiment is a ferrite magnetic material formed of hard ferrite, wherein a P content in terms of P2O5 is 0.001% by mass or more.
摘要翻译:本发明的目的是提供一种能够提供保持高Br和HcJ的永磁体以及具有高Hk / HcJ的铁氧体磁性材料。 根据优选实施方案的铁氧体磁性材料是由硬质铁氧体形成的铁氧体磁性材料,其中以P 2 O 5计的P含量为0.001质量%以上。
摘要:
Methods of producing silicon carbide fibers. The method comprises reacting a continuous carbon fiber material and a silicon-containing gas in a reaction chamber at a temperature ranging from approximately 1500° C. to approximately 2000° C. A partial pressure of oxygen in the reaction chamber is maintained at less than approximately 1.01×102 Pascal to produce continuous alpha silicon carbide fibers. Continuous alpha silicon carbide fibers and articles formed from the continuous alpha silicon carbide fibers are also disclosed.
摘要:
There is provided a ceramic member which is a sintered body containing enstatite and boron nitride as constituents, in which boron nitride is oriented in a single direction, a probe holder formed using the ceramic member, and a manufacturing method of the ceramic member. In the ceramic member, an index of orientation degree is not less than 0.8. In so doing, it is possible to provide a ceramic member which has a free machining property, a coefficient of thermal expansion which is close to that of silicon, and high strength, and a probe holder which is formed using the ceramic member, and a manufacturing method of the ceramic member.
摘要:
Provided is a zinc oxide sintered compact tablet enabling a transparent conductive film having no pinholes defects to be stably obtained during vacuum deposition film formation by suppressing the occurrence of the splashing phenomenon. A zinc oxide sintered compact tablet having hexagonal crystal structure, wherein when the integrated intensity of surface (103) and surface (110) found through X-ray diffraction analysis using CuKα radiation is taken to be I(103) and I(110) respectively, the orientation of the uniaxially pressed surface that is expressed by I(103)/(I(103)+I(110)) is 0.48 or more is obtained by performing pressurized formation of a granulated powder composed of a zinc oxide powder or a powder mixture of zinc oxide and an added element as a dopant and having a percentage of donut shaped secondary particles of 50% or more, sintering at normal pressure and a temperature of 800° C. to 1300° C., and further performing reduction treatment by maintaining the normal pressure sintered compact in a vacuum at a pressure of 1×10−3 Pa or more and at a temperature of 800° C. to 1300° C. for no less than 1 minute and no longer than 10 minutes.
摘要:
To manufacture the implant a nanopowder of synthetic hydroxyapatite (Hap) is used having a hexagonal structure, average grain size in a range from 3 to 30 nm and the specific surface area greater than 200 m2/g. First the nanopowder is formed to the desired geometric shape, and then the shape is fixed. In the step of shape information the dried nanopowder is pressed in the mold under the pressure ranging from 50 Mpa to 2 GPa. In the step of fixing the pressed nanopowder at room temperature is subjected to the pressure rising from the ambient value to the peak value selected from a range of 1 to 8 GPa and to a temperature selected from a range of 100° C. to 600° C. for a period of time selected from a range from 30 seconds to 5 minutes. The density of thus produced implant, determined by helium method, is not less than 75% of the theoretical density.
摘要:
A manganese oxide contains M1, optionally M2, Mn and O. M1 is selected from the group consisting of In, Sc, Y, Dy, Ho, Er, Tm, Yb and Lu. M2 is different from M1, and M2 is selected from the group consisting of Bi, In, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. These ceramic materials are hexagonal in structure, and provide superior materials for gas separation and oxygen storage.
摘要:
A method of producing β-SiAlON includes a sintering process, in which β-SiAlON starting materials, a mixture of silicon nitride, aluminum nitride, optically active element compound, and at least one compound selected from aluminum oxide and silicon oxide, are sintered at temperatures ranging from 1820° C. to 2200° C. The method provides new β-SiAlON low in carbon content and having high luminescence intensity by placing a plurality of boron nitride vessels in a graphite box to allow the β-SiAlON starting materials packed in the plurality of boron nitride vessels to easily come in contact with nitrogen gas, and performing sintering in nitrogen atmosphere.
摘要:
A cubic boron nitride complex polycrystal contains granular cubic boron nitride and tabular cubic boron nitride. The average grain size of the granular cubic boron nitride is 500 nm or less. The maximum value of a short side of the tabular cubic boron nitride is 10 nm or more to 10000 nm or less. Thereby, it is possible to provide a cubic boron nitride complex polycrystal having high hardness and a manufacturing method therefor, a cutting tool, a wire-drawing die and a grinding tool including the same.