摘要:
A novel aluminum nitride material having a low room temperature volume resistivity is provided. The aluminum nitride material has an aluminum nitride main component and includes at least 0.03 mol % of europium oxide. The aluminum nitride material has an aluminum nitride phase and an europium-aluminum composite oxide phase. An aluminum nitride material also provided having an aluminum nitride main component, wherein a total content of europium oxide and samarium oxide is at least 0.09 mol %. The aluminum nitride material has an aluminum nitride phase and a composite oxide phase containing at least europium and aluminum.
摘要:
An aluminum nitride-based ceramic sintered body is provided, which is manufactured by sintering an aluminum nitride powder comprising aluminum nitride as a main component, carbon in an amount of 0.1 wt % or more to 1.0 wt % or less, and containing oxygen in an amount that is not greater than 0.7 wt %, wherein carbon and oxygen are dissolved in grains of the aluminum nitride powder. The a-axis length of the lattice constant of the aluminum nitride is in a range of 3.1120 Å or more to 3.1200 Å or less, and the a c-axis length of the lattice constant is in a range of 4.9810 Å or more to 4.9900 Å or less. The volume resistivity of the aluminum nitride-based ceramic sintered body at 500° C. is 109 Ω·cm or more.
摘要:
100 g of aluminum nitride (AlN) powder and 2.0 g of aluminum oxide (Al2O3) powder were placed in graphite crucible. Thereafter, the entire crucible was treated with heat by keeping it in a nitrogen atmosphere at a temperature of 2200° C. and a pressure of 1.5 kgf/cm2 for 2 hours. In this manner, aluminum nitride powder was prepared.
摘要翻译:将100g的氮化铝(AlN)粉末和2.0g氧化铝(Al 2 O 3 O 3)粉末放入石墨坩埚中。 此后,将整个坩埚在2200℃的温度和1.5kgf / cm 2的压力下保持在氮气氛中加热处理2小时。 以这种方式制备氮化铝粉末。
摘要:
An aluminum nitride-based ceramic sintered body is provided, which is manufactured by sintering an aluminum nitride powder comprising aluminum nitride as a main component, carbon in an amount of 0.1 wt % or more to 1.0 wt % or less, and containing oxygen in an amount that is not greater than 0.7 wt %, wherein carbon and oxygen are dissolved in grains of the aluminum nitride powder. The a-axis length of the lattice constant of the aluminum nitride is in a range of 3.1120 Å or more to 3.1200 Å or less, and the a c-axis length of the lattice constant is in a range of 4.9810 Å or more to 4.9900 Å or less. The volume resistivity of the aluminum nitride-based ceramic sintered body at 500° C. is 109 Ω·cm or more.
摘要:
An aluminum nitride-based ceramic sintered body is provided, which is manufactured by sintering an aluminum nitride powder comprising aluminum nitride as a main component, carbon in an amount of 0.1 wt % or more to 1.0 wt % or less, and containing oxygen in an amount that is not greater than 0.7 wt %, wherein carbon and oxygen are dissolved in grains of the aluminum nitride powder. The a-axis length of the lattice constant of the aluminum nitride is in a range of 3.1120 Å or more to 3.1200 Å or less, and the a c-axis length of the lattice constant is in a range of 4.9810 Å or more to 4.9900 Å or less. The volume resistivity of the aluminum nitride-based ceramic sintered body at 500° C. is 109 Ω·cm or more.
摘要:
A method for producing an aluminum nitride sintered product according to the present invention includes the steps of (a) preparing a powder mixture that contains AlN, 2 to 10 parts by weight of Eu2O3 with respect to 100 parts by weight of AlN, Al2O3 such that a molar ratio of Al2O3 to Eu2O3 is 2 to 10, and TiO2 such that a molar ratio of TiO2 to Al2O3 is 0.05 to 1.2, but not Sm; (b) producing a compact from the powder mixture; and (c) firing the compact by subjecting the compact to hot-press firing in a vacuum or in an inert atmosphere.
摘要翻译:根据本发明的制造氮化铝烧结产品的方法包括以下步骤:(a)制备包含AlN的粉末混合物,相对于100重量份的AlN,Al 2 O 3为2至10重量份的Eu 2 O 3,使得 Al2O3与Eu2O3的摩尔比为2〜10,TiO 2与TiO 2的摩尔比为0.05〜1.2,而不是Sm; (b)从粉末混合物制备压块; 和(c)通过使压坯在真空或惰性气氛中热压烧结来烧结压块。
摘要:
A method for manufacturing an alumina sintered body of the present invention comprises: (a) forming a mixed powder containing at least Al2O3 and MgF2 or a mixed powder containing Al2O3, MgF2, and MgO into a compact having a predetermined shape; and (b) performing hot-press sintering of the compact in a vacuum atmosphere or a non-oxidizing atmosphere to form an alumina sintered body, in which when a amount of MgF2 to 100 parts by weight of Al2O3 is represented by X (parts by weight), and a hot-press sintering temperature is represented by Y (° C.), the hot-press sintering temperature is set to satisfy the following equations (1) to (4) 1,120≦Y≦1,300 (1) 0.15≦X≦1.89 (2) Y≦−78.7X+1,349 (3) Y≧−200X+1,212 (4).
摘要翻译:本发明的氧化铝烧结体的制造方法包括:(a)将至少包含Al 2 O 3和MgF 2的混合粉末或含有Al 2 O 3,MgF 2和MgO的混合粉末形成为具有预定形状的压块; 和(b)在真空气氛或非氧化性气氛中对压实体进行热压烧结,以形成氧化铝烧结体,其中当MgF2与100重量份的Al 2 O 3的量以X表示时 重量),热压烧结温度由Y(℃)表示,热压烧结温度设定为满足下述式(1)〜(4)1,120≦̸ Y≦̸ 1,300(1)0.15 ≦̸ X≦̸ 1.89(2)Y≦̸ -78.7X + 1,349(3)Y≥-200X + 1,212(4)。
摘要:
A method for manufacturing an alumina sintered body of the present invention comprises: (a) forming a mixed powder containing at least Al2O3 and MgF2 or a mixed powder containing Al2O3, MgF2, and MgO into a compact having a predetermined shape; and (b) performing hot-press sintering of the compact in a vacuum atmosphere or a non-oxidizing atmosphere to form an alumina sintered body, in which when a amount of MgF2 to 100 parts by weight of Al2O3 is represented by X (parts by weight), and a hot-press sintering temperature is represented by Y (° C.), the hot-press sintering temperature is set to satisfy the following equations (1) to (4) 1,120≦Y≦1,300 (1) 0.15≦X≦1.89 (2) Y≦−78.7X+1,349 (3) Y≧−200X+1,212 (4).
摘要翻译:本发明的氧化铝烧结体的制造方法包括:(a)将至少包含Al 2 O 3和MgF 2的混合粉末或含有Al 2 O 3,MgF 2和MgO的混合粉末形成为具有预定形状的压块; 和(b)在真空气氛或非氧化性气氛中对压实体进行热压烧结,以形成氧化铝烧结体,其中当MgF2与100重量份的Al 2 O 3的量以X表示时 重量),热压烧结温度由Y(℃)表示,热压烧结温度设定为满足下述式(1)〜(4)1,120≦̸ Y≦̸ 1,300(1)0.15 ≦̸ X≦̸ 1.89(2)Y≦̸ -78.7X + 1,349(3)Y≥-200X + 1,212(4)。
摘要:
An aluminum nitride sintered body essentially contains aluminum nitride. It contains 0.4 to 2.5 wt % magnesium and 2.0 to 5.0 wt % yttrium, and has an average particle size of not more than 1.0 μm.
摘要:
A dense cordierite based sintered body contains 93% by mass or more of cordierite among crystal components contained in the sintered body, and an average particle diameter of the particle which constitute the sintered body is 2 μm or less. A method of manufacturing a dense cordierite based sintered body, includes the steps of: using cordierite powder having an average particle diameter of 2 μm or less as a raw material; and sintering the raw material at a temperature of 1350 to 1450° C. The dense cordierite based sintered body satisfactorily exhibits original characteristics of cordierite, and a sufficient strength.