摘要:
A thermal barrier coating member to be used for such as a member for a gas turbine comprising a metallic member comprising a super alloy mainly composed of at least one of Ni, Co and Fe, an intermediate layer composed of a MCrAlY alloy (M denotes at least one of Ni, Co and Fe) covering this metallic substrate, and a ceramic layer mainly composed of stabilized zirconia formed on the intermediate layer. A ceramic material having a higher melting point than zirconia is compounded in the ceramic layer as a member for suppressing a reaction sintering of the ceramic layer.
摘要:
A ceramic coating method for coating a ceramic on a metallic substrate is disclosed where a ceramic material is coated on a surface of a metallic substrate by continuously changing the composition of a mixture of a ceramic material and a metal to form a ceramic coating film on a surface of the metallic substrate. A heat treatment then is effected to the ceramic coated metallic substrate so as to induce a residual stress due to compression on a surface of the ceramic coating film, thereby improving the durability of the ceramic coating film.
摘要:
The present invention is directed to a method of preparing a composite material excellent in joint strength and heat conductivity, and more specifically to a method of preparing a composite material composed of a high-melting material W and low-melting material Cu. The method comprising a first step of forming pores in the high-melting material W, to obtain a substrate material having a porosity distribution, with a high porosity at at least one region of the surface of the substrate material and the porosity gradually decreasing outward from the region; and a second step of impregnating the low melting material Cu to the substrate material obtained in the first step from the region of the highest porosity gradually downward. The substrate material being formed to have a gradient distribution of a composite ratio of the high-melting material and the low-melting material.
摘要:
An electroconductive material has at least one portion in which the electrical resistance varies continuously along a gradient. Accordingly, since the material is not formed by directly bonding different elements, it does not have a weak joint portion. Further, since other material characteristics besides electrical resistance also vary along a gradient, for instance, when the material is used at a high or low temperature, a large thermal stress does not generate at an interface between different elements of the material due to a difference of thermal expansion coefficients of such elements. A motor uses the above electroconductive material as a conductor provided in a plural slots. Consequently, starting characteristics of the motor are improved due to the skin effect, and internal stress of the motor due to the thermal expansion of the conductor is decreased. Moreover, the reliability of the motor is improved.
摘要:
Silicon carbide matrix composite material (1) comprises silicon carbide matrix (2) as a host The silicon carbide matrix (2) comprises first silicon carbide phase (3) of 0.1 to 10 μm average crystal grain diameter and second silicon carbide phase (4) of 0.01 to 2 μm average crystal grain diameter. In interstices of silicon carbide crystal grains constituting the silicon carbide matrix (2), liberated silicon phase (5) amounting to, for example, 5 to 50 mass % based on the composite material (1) is present continuously in network form. This fine structure enables realizing high strength and high toughness of the silicon carbide composite material (1).
摘要:
Silicon carbide matrix composite material (1) comprises silicon carbide matrix (2) as a host. The silicon carbide matrix (2) comprises first silicon carbide phase (3) of 0.1 to 10 μm average crystal grain diameter and second silicon carbide phase (4) of 0.01 to 2 μm average crystal grain diameter. In interstices of silicon carbide crystal grains constituting the silicon carbide matrix (2), liberated silicon phase (5) amounting to, for example, 5 to 50 mass % based on the composite material (1) is present continuously in network form. This fine structure enables realizing high strength and high toughness of the silicon carbide composite material (1).
摘要:
According to one embodiment, a three-dimensional information output apparatus includes a detection module configured to detect a degree of three-dimensionality of a three-dimensional video, a generation module configured to generate three-dimensional information from display information based on the degree of three-dimensionality, and an output module configured to output the three-dimensional display information.
摘要:
A fuel electrode for a solid oxide electrochemical cell includes: an electrode layer including a mixed phase constituted of zirconia stabilized with yttrium oxide, ytterbium oxide, or scandium oxide and of an oxide selected from the group including an aluminum-based oxide and a magnesium-based composite oxide, said oxide having, supported on a surface part thereof, particles of at least one member selected from nickel, cobalt, and nickel-cobalt alloys; a meshy wiring formed on a surface layer part of the electrode layer and made of a material having higher electronic conductivity than the electrode layer; and a current collector which overlies the electrode layer and is in contact with at least the wiring.
摘要:
A voltage non-linear resistor unit is composed of at least one of voltage non-linear resistors which is composed of a columnar sintered body formed by molding and sintering a raw material, the sintered body having both end surfaces having a surface roughness in term of arithmetic average surface roughness Ra of 1 to 2 &mgr;m and being formed with an electrode film layer, a terminal metal fitting formed in a predetermined shape and attached to the voltage non-linear resistor, and a soldering material arranged between the voltage non-linear resistors and between joint surfaces of the voltage non-linear resistor and the terminal metal fitting, the joint surfaces being joined by heating the soldering material and applying a load vertically to the joint surfaces while giving a rotation motion thereto. Such voltage non-linear resistor is effectively assembled into an arrester.
摘要:
A sintered body which can be formed into a resistor having a non-linear resistance includes zinc oxide is the principal composition and bismuth, cobalt, antimony, manganese and nickel respectively converted to expressed Bi2O3, Co2O3, Sb2O3, MnO and NiO as auxiliary compositions. The compositions contains 0.05 to 10 mol % of Bi2O3, 0.05 to 10 mol % of Co2O3, 0.05 to 10 mol % of Sb2O3, 0.05 to 10 mol % of MnO and 0.05 to 10 mol % of NiO; the content ratio of the Bi2O3 to the NiO is in a mole ratio of 0.5 or more but 1.5 or less, and the content ratio of the MnO to the Sb2O3 is in a mole ratio of 1.0 or less. Preferably, the composition contains at least one of 0.5 to 500 ppm of aluminum, converted to Al3+, and 10 to 1000 ppm of at least one or the other of boron and silver, converted respectively to B3+, and Ag+. The composition may also contain 0.01 to 1000 ppm of at least one of sodium, potassium, chlorine and calcium, converted respectively to Na+, K+, Cl− and Ca2+.
摘要翻译:可以形成为具有非线性电阻的电阻器的烧结体是主要组成,分别转化为表示的Bi 2 O 3,Co 2 O 3,Sb 2 O 3,MnO和NiO的铋,钴,锑,锰和镍作为辅助组合物。 该组合物含有0.05〜10mol%的Bi 2 O 3,0.05〜10mol%的Co 2 O 3,0.05〜10mol%的Sb 2 O 3,0.05〜10mol%的MnO和0.05〜10mol%的NiO; Bi 2 O 3与NiO的含有比为0.5以上且1.5以下的摩尔比,MnO与Sb 2 O 3的含有比为1.0以下的摩尔比。 优选地,组合物包含分别转化为B3 +和Ag +的至少一种0.5至500ppm的铝,转化为Al 3+和10至1000ppm的至少一种或另一种硼和银。 组合物还可以含有0.01至1000ppm的钠,钾,氯和钙中的至少一种,分别转化为Na +,K +,Cl-和Ca 2+。