China National Standard GB/T1804

China National Standard GB/T1804 "General tolerances Tolerances for linear and angular dimensions without individual tolerance indications" GB/T1804 is equivalent to the international standard ISO 2768-1: 1989 "General tolerances - Part 1: Tolerance of linear and angular dimensions without tolerances" in the tolerance part of the linear dimension of the tolerance. GB/T1804 specifies the general tolerance …

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Cerámica Técnica

Materiales cerámicos Los materiales cerámicos son inorgánicos y no metálicos, generalmente son definidos como "sólidos inorgánicos", son uno de los principales materiales de clasificación, junto con los metales, polímeros y compuestos. Hay varios tipos de materiales cerámicos, con cerámica técnica (también conocida como cerámica avanzada, cerámica fina, cerámica industrial o cerámica de ingeniería) que son …

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Technical Ceramics

Ceramic Materials Ceramic materials are inorganic and non-metallic, generally they are defined as “inorganic solids”, they are one of the main materials classification, along with metals, polymers, and composites. There are several types of ceramic materials, with technical ceramics (also known as advanced ceramics, fine ceramics, industrial ceramics or engineered ceramics) being the group with …

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Aging of steatite ceramics

Definition: Due to improper control of raw materials, formulations or production processes, the phenomenon of pulverization, cracking, strength reduction, and deterioration of dielectric properties during tarnishing after firing may occur. This phenomenon is commonly called as aging of steatite ceramics. Once the aging phenomenon of steatite ceramics will cause serious damage and loss to production …

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Applications of alumina ceramics with different alumina content

High-purity alumina ceramics with Al2O3 content of 99.9%, the sintering temperature is as high as 1650-1990 ° C, transmission wavelength of 1 ~ 6μm. High-purity alumina ceramics generally can be used to replace platinum crucible: because of the light transmission and resistance Alkali metal corrosion, high-purity alumina ceramics can be used as sodium lamp tubes; …

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Steatite Ceramic Components

Steatite Ceramic Components (MgO•SiO2) Steatite is a magnesium silicate material of high electrical resistance at high temperatures, good mechanical strength and a very low dielectric loss factor, which has been used for many decades as insulators or enclosures for electrical components. Steatite ceramics is made from a mineral talcum(3MgO.4SiO2.H2O), as the main raw material, adding …

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Zirconia Ceramic Components

Zirconia Ceramic Components (ZrO2) Zirconia ceramics is the strongest and toughest material among advanced ceramics. Zirconia (ZrO2) has a monoclinic crystal structure at room temperatures, but transforms to cubic and tetragonal structures at elevated temperatures. This transition can result in the development of stresses during cooling which negatively impact the strength of the material. Type …

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