摘要:
A dielectric ceramic composition is formed of a mixture including a BaO--TiO.sub.2 --REO.sub.3/2 ceramic composition, wherein RE represents a rare earth element, and a glass composition containing about 13-50 wt. % SiO.sub.2, about 3-30 wt. % B.sub.2 O.sub.3, about 40-80 wt. % alkaline earth metal oxide and about 0.5-10 wt. % Li.sub.2 O. The dielectric ceramic composition has a high dielectric constant and a high Q value, as well as excellent temperature stability, and is capable of being sintered at a relatively low temperature. The dielectric ceramic composition is advantageously used in ceramic electronic parts.
摘要:
An inorganic composition for low temperature firing comprising about 15 to 40 weight % of glass powder and about 60 to 85 weight % of cordierite, is disclosed. The glass powder is composed of about 20 to 60 weight % of SiO2, about 30 to 50 weight % of B2O3, about 5 to 30 weight % of MgO, 0 to about 15 weight % of Al2O3, and about 1 to 5 weight % of R2O (R is alkali metal). The inorganic composition is capable of being fired at a relative low temperature, and has a low thermal expansion coefficient and permittivity, as well as high mechanical strength.
摘要翻译:公开了一种用于低温烧制的无机组合物,其包含约15至40重量%的玻璃粉末和约60至85重量%的堇青石。 该玻璃粉末由SiO 2 20-60重量%,B 2 O 3约30-50重量%,MgO约5-30重量%,Al 2 O 3重量%至约15重量%,Al 2 O 3重量% R2O(R为碱金属)。 无机组合物能够在相对低的温度下焙烧,并且具有低热膨胀系数和介电常数以及高的机械强度。
摘要:
A method for manufacturing a multilayer ceramic substrate includes a firing step wherein low-temperature-sinterable ceramic material contained in green base layers and inorganic material contained in green constraining layers chemically react each other, whereby a reaction layer is formed along an interface between the green base layer and the green constraining layer. The reaction layer acts to enhance a bonding force between the green base layer and the green constraining layer.
摘要:
Provided is a crystalline glass composition for use in a circuit board that can be sintered at a temperature of 1100° C. and is endowed with favorable characteristics such as a relative dielectric constant of as low as ½ and a thermal expansion coefficient of as high as 12 ppm/° C. as an electrical insulating insulator for use in a circuit board. The crystalline glass composition contains SiO2, MgO and CaO, the composition ratio of SiO2, MgO and CaO in % by weight falling within an area surrounded by the lines connecting the points A (25, 45, 30), B (25, 0, 75), C (44, 0, 56), D (44, 22, 34), E (40, 19, 41) and F (29, 40, 31) in a ternary phase diagram wherein at least one melwinite, monticellite or calcium silicate crystalline phase is deposited by heat-treating the composition. A ceramic powder having a thermal expansion coefficient of about 6.0 ppm/C or more is sometimes added in the powder comprising the glass composition.
摘要:
A ceramic substrate composition includes about 26 to 48% by weight of a CaO—Al2O3—B2O3—SiO2 type glass, about 35 to 68% by weight of at least one of alumina, mullite, cordierite and forsterite, and about 3 to 24% by weight of quartz, said glass being capable of being crystallized to wollastonite by firing of the composition at a temperature of about 800 to 1000° C. A ceramic circuit component contains a circuit formed on the ceramic substrate obtained by firing the composition.
摘要翻译:陶瓷基材组合物包含约26至48重量%的CaO-Al 2 O 3 -B 2 O 3 -SiO 2型玻璃,约35至68重量%的氧化铝,莫来石,堇青石和镁橄榄石中的至少一种,和约3至24重量% 的石英,所述玻璃能够通过在约800〜1000℃的温度下焙烧组合物而结晶成硅灰石。陶瓷电路部件包含通过焙烧组合物而获得的陶瓷基板上形成的电路。
摘要:
A method of producing a multi-layer ceramic substrate involves the steps of preparing compact blocks including a raw ceramic functional material to be the passive component, preparing a raw composite laminated member having a plurality of laminated ceramic green sheets containing a ceramic insulating material and wiring conductors and preliminarily providing spaces in the inside such that the compact blocks fit into the spaces, arranging sheet type bases made from a raw ceramic not sintered at the baking temperature of the composite laminated member on the principal plane at both ends with respect to the lamination direction of the raw composite laminated member, baking the raw composite laminated member with the raw composite laminated member interposed by the sheet type bases so as to restrain the contraction at a temperature not more than about 1000° C., and eliminating the unsintered sheet type bases.
摘要:
A dielectric ceramic composition which has a high dielectric constant and a high Q value, as well as excellent temperature stability, and which is sinterable at a relatively low temperature. The dielectric ceramic composition of the present invention is formed of a mixture of a BaO--TiO.sub.2 --REO.sub.3/2 --BiO.sub.3 ceramic composition wherein RE represents a rare earth element, and a glass composition. The glass composition contains about 13-50 wt. % SiO.sub.2, about 3-30 wt. % B.sub.2 O.sub.3, about 40-80 wt. % alkaline earth metal oxide and about 0.1-10 wt. % Li.sub.2 O.
摘要:
According to one embodiment, an article sales data processing apparatus includes a list display control unit, a selection unit, an editing acceptance unit, and an update unit. The list display control unit causes a list of articles sold in one transaction to be displayed in the details area. The selection unit accepts selection of an article, of the articles displayed in the details area. The editing acceptance unit causes the display unit to display an editing screen for the sales data of the article selected by the selection unit, and accepts editing of the sales data. When the sales data displayed in the editing screen is edited, the update unit updates the sales data of the article selected by the selection unit, of the sales data of each article stored in the transaction storage unit, to the edited data.
摘要:
Disclosed herein is a playlist creation apparatus including a person specification section, a liking extraction section, a searching section, and a playlist creation section. The person specification section is adapted to specify a person captured in an image based on image data. Also, the liking extraction section is adapted to extract a liking of the person specified by said person specification section. The searching section is adapted to search, based on the liking extracted by said liking extraction section, for sound data of sound conforming to the liking. In addition, the a playlist creation section is adapted to create a playlist which defines a reproduction order of the sound data searched out by said searching section during displaying of the image based on the image data.
摘要:
A device for manufacturing resin molded articles for use in optical elements. Said device is provided with a first molding die which is fixed in place; a second molding die, being movable, which has, on a molding die surface of a cavity, a transfer surface for transferring an optical surface to a melted resin injected into the cavity; a nozzle for injecting a fluid under pressure into the melted resin injected into the cavity, thereby forming a void inside said melted resin; and an ejector pin that is provided in the second molding die, protruding from the molding surface thereof, to release a base material from the molding surface.