精细陶瓷（先进陶瓷、先进技术陶瓷） 分类体系

[中文适用范围]： 本国际标准描述了精细陶瓷（先进陶瓷、先进技术陶瓷）（见第 3 条）的分类系统。 该系统旨在涵盖用于陶瓷粉末生产的无机前体、粉末、颗粒、纤维、晶须、片晶、单晶、固结多晶陶瓷、无定形（玻璃态）和复合材料和组件的所有类型的精细陶瓷。 块状、薄膜状和涂层状。 分类的结构被编码为机器可读的。 该分类系统不包括： a) 元素碳，但特定陶瓷形式除外，例如金刚石、玻璃碳或化学气相沉积 (CVD) 石墨； b) 单质硅、单质锗和其他单质或复合半金属物质，但它们构成精细陶瓷的组成部分或前体的除外； c) 以粘土为原料的传统陶瓷，包括： 1) 白色陶瓷（如餐具和精美瓷器）； 2）卫生洁具； 3）地砖、墙砖； 4）建筑陶瓷（如砖、管材）； d) 用于吨位应用的不定形和定形耐火材料。 本国际标准并未专门涵盖硬质合金（硬质合金）产品或主要是玻璃质的产品，但原则上该体系可以扩展到涵盖此类产品。 其使用方式将由其使用目的决定。 本国际标准的目的不是定义如何使用该系统，而是给出了如何使用该系统的示例。 用户能够定义编码组合和详细程度以适应特定目的。 本国际标准仅提供了一个灵活的框架和一个推荐的国际编码系统，可以在其中完成此操作。 [外文原描述]： This International Standard describes a system by which fine ceramics (advanced ceramics, advanced technical ceramics) (see clause 3) may be classified. The system has been devised to cover all types of fine ceramics in the form of inorganic precursors for ceramic powder production, powders, granular forms, fibres, whiskers, platelets, single crystals, consolidated polycrystalline ceramics, amorphous (glassy) and composite materials and components in block, thin film and coating forms. The structure of the classification is coded to be machine readable. The classification system does not cover: elemental carbon, except for specific ceramic forms such as diamond, vitreous carbon or chemical vapour deposited (CVD) graphite; elemental silicon, elemental germanium and other elemental or compound semi-metallic substances other than when they form an integral component of or precoursor for fine ceramics; traditional ceramics based on clay, including: whitewares (e.g. tableware and fine porcelain); sanitary wares; floor and wall tiles; building ceramics (e.g. bricks and pipes); unshaped and shaped refractories for tonnage applications. This International Standard does not specifically cover hardmetal (cemented carbide) products, or products which are mainly glassy, but the system can, in principle, be extended to cover such products. Its mode of use will be determined by the objective behind its use. It is not the purpose of this International Standard to define how the system shall be used, but examples are given of how it might be used. The user is able to define the coding combination and the level of detail to suit a particular purpose. This International Standard provides only a flexible framework and a recommended international coding system within which this might be done.