摘要:
A magnetic recording medium having a heat shrinkage ratio of not higher than 1% and comprising a nonmagnetic support in the form of a tape which has a heat shrinkage ratio of not higher than 1.8%, a Young's modulus of 450 to 650 kg/mm.sup.2 in the longitudinal direction and a Young's modulus of 450 to 550 kg/mm.sup.2 in the width direction, and a magnetic recording layer provided on the support which comprises a binder and a ferromagnetic powder dispersed therein and has a squareness ratio of not less than 0.89. All the heat shrinkage ratios are values determined after being allowed to stand at 110.degree. C. for 4 hours.
摘要:
The present invention provides a negative-electrode material for a lithium secondary battery which has a very low resistance, allows the lithium secondary battery to be charged and discharged (high output) at a high current and have a high capacity, and achieve a cycle life to such an extent that the lithium secondary battery can be mounted on a vehicle. The electrode material is composed of (a) at least one active substance (4) selected from among a metal oxide containing metal therein and an alloy material each of which is coated with a carbon material and has a graphene phase or an amorphous phase (8) on at least a surface thereof, (b) a graphite-based carbon material (5) having the graphene phase or the amorphous phase on at least a surface thereof; and (c) carbon material (6) other than the graphite-based carbon material and having the graphene phase or the amorphous phase on at least a surface thereof. The active substance (4), the graphite-based carbon material (5), and the carbon material (6) other than the graphite-based carbon material fuse the graphene phase or the amorphous phase (8a, 8b) thereof together and bond them to each other to form a composite active substance (7) including composed of the active substance including one active substance selected from among the metal oxide containing the metal and the alloy material.
摘要:
According to one embodiment, a semiconductor light emitting device includes an n-type semiconductor layer, a p-type semiconductor layer, a well layer, a barrier layer, an Al-containing layer, and an intermediate layer. The p-type semiconductor layer is provided on a side of [0001] direction of the n-type semiconductor layer. The well layer, the barrier layer, the Al-containing layer and the intermediate layer are disposed between the n-type semiconductor layer and the p-type semiconductor layer subsequently. The Al-containing layer has a larger band gap energy than the barrier layer, a smaller lattice constant than the n-type semiconductor layer, and a composition of Alx1Ga1-x1-y1Iny1N. The intermediate layer has a larger band gap energy than the well layer, and has a first portion and a second portion provided between the first portion and the p-type semiconductor layer. A band gap energy of the first portion is smaller than that of the second portion.
摘要翻译:根据一个实施例,半导体发光器件包括n型半导体层,p型半导体层,阱层,阻挡层,含Al层和中间层。 p型半导体层设置在n型半导体层的[0001]方向的一侧。 阱层,阻挡层,含Al层和中间层随后设置在n型半导体层和p型半导体层之间。 含Al层具有比阻挡层更大的带隙能量,比n型半导体层更小的晶格常数以及Al x Ga 1-x 1-y 1 In y N 1的组成。 中间层具有比阱层更大的带隙能量,并且具有设置在第一部分和p型半导体层之间的第一部分和第二部分。 第一部分的带隙能量小于第二部分的带隙能量。
摘要:
The semiconductor light emitting device according to an embodiment includes an N-type nitride semiconductor layer, a nitride semiconductor active layer disposed on the N-type nitride semiconductor layer, and a P-type nitride semiconductor layer disposed on the active layer. The P-type nitride semiconductor layer includes an aluminum gallium nitride layer. The indium concentration in the aluminum gallium nitride layer is between 1E18 atoms/cm3 and 1E20 atoms/cm3 inclusive. The carbon concentration is equal to or less than 6E17 atoms/cm3. Where the magnesium concentration is denoted by X and the acceptor concentration is denoted by Y, Y>{(−5.35e19)2−(X−2.70e19)2}1/2−4.63e19 holds.
摘要:
A conductive member disposed as a power supply line and the like includes: a first conductive material and a second conductive material, at least one of which includes a conductive material having electrical resistance lower than that of aluminum; and a metal film formed by depositing powder including a metal, which is accelerated together with a gas and sprayed, in a sold state, onto a surface of a butting part, where the first conductive material and the second conductive material are butted against each other.
摘要:
A brazing alloy for bonding in air contains Ag, B, and Si, as essential components, in which the total of constituent elements except for Ag is set to more than 50% by volume and not more than 90% by volume, Si content in the constituent elements except for Ag is set to more than 22% by volume, and B content in the constituent elements except for Ag is set to more than 14% by volume. In a bonded layer of a bonded specimen of the present invention, after holding at high temperature, no void as observed in a bonded specimen after holding at high temperature of a Comparative Sample is observed, the brazing alloy is sufficiently melted, and superior gas sealing characteristics are maintained even after holding at high temperature for a long time.
摘要:
A brazing alloy for bonding in air, in which the melting point is reduced so as to perform brazing at a low temperature without using flux even in air, is provided. In addition, a bonded article and a current collecting material, each of which is bonded with the brazing alloy and has preferable gas sealing characteristics and superior bonding strength, are provided. The brazing alloy for bonding in air includes Ag and B as essential components. The amount of Ag is not less than 50 vol. % and less than 92 vol. %, and the amount of B is greater than 8 vol. % and not more than 50% vol. %. The amounts of Ag and B are adjusted so that the total of the amounts of Ag and B is 100% including inevitable impurities.
摘要:
The present invention provides a negative-electrode material for a lithium secondary battery which has a very low resistance, allows the lithium secondary battery to be charged and discharged (high output) at a high current and have a high capacity, and achieve a cycle life to such an extent that the lithium secondary battery can be mounted on a vehicle. The electrode material is composed of (a) at least one active substance (4) selected from among a metal oxide containing metal therein and an alloy material each of which is coated with a carbon material and has a graphene phase or an amorphous phase (8) on at least a surface thereof, (b) a graphite-based carbon material (5) having the graphene phase or the amorphous phase on at least a surface thereof; and (c) carbon material (6) other than the graphite-based carbon material and having the graphene phase or the amorphous phase on at least a surface thereof. The active substance (4), the graphite-based carbon material (5), and the carbon material (6) other than the graphite-based carbon material fuse the graphene phase or the amorphous phase (8a, 8b) thereof together and bond them to each other to form a composite active substance (7) including composed of the active substance including one active substance selected from among the metal oxide containing the metal and the alloy material.
摘要:
A valve stopping mechanism wherein when hydraulic fluid pressure is low a cylinder operating state is set and a response of a switch from a cylinder stop state to the cylinder operating state is high. An intake valve and an exhaust valve, a first intake valve spring and a first exhaust valve spring are provided for energizing the valves in the direction of closing the valves, valve drive cams, valve stopping mechanisms, on the basis of a stop hydraulic fluid pressure and energization of plunger springs, for selectively generating valve operating and valve stop states. The valve stopping mechanism generates the operating state when the energizing force of the plunger spring is larger than the press force of the stop hydraulic fluid pressure and generates the stop state when the press force of the stop hydraulic fluid pressure is larger than the energizing force of the plunger spring.
摘要:
The present invention provides a semiconductor light emitting element with excellent color rendering properties, a method for manufacturing the semiconductor light emitting element, and a light emitting device. The semiconductor light emitting element includes: a semiconductor substrate that has a convex portion having a tilted surface as an upper face, and a concave portion formed on either side of the convex portion, the concave portion having a smaller width than the convex portion, a bottom face of the concave portion being located in a deeper position than the upper face of the convex portion; and a light emitting layer that is made of a nitride-based semiconductor and is formed on the semiconductor substrate so as to cover at least the convex portion.