Q32 特种陶瓷 标准查询与下载

ASTM C1211-18 高温下高级陶瓷抗弯强度的标准试验方法

4.1 This test method may be used for material development, quality control, characterization, and design data generation purposes. This test method is intended to be used with ceramics whose flexural strength is ∼50 MPa (∼7 ksi) or greater. 4.2 The flexure stress is computed based on simple beam theory, with assumptions that the material is isotropic and homogeneous, the moduli of elasticity in tension and compression are identical, and the material is linearly elastic. The average grain size should be no greater than 1/50 of the beam thickness. The homogeneity and isotropy assumptions in the test method rule out the use of it for continuous fiber-reinforced composites for which Test Method C1341 is more appropriate. 4.3 The flexural strength of a group of test specimens is influenced by several parameters associated with the test procedure. Such factors include the testing rate, test environment, specimen size, specimen preparation, and test fixtures. Specimen and fixture sizes were chosen to provide a balance between the practical configurations and resulting errors as discussed in Test Method C1161, and Refs (1-3).4 Specific fixture and specimen configurations were designated in order to permit the ready comparison of data without the need for Weibull size scaling. 4.4 The flexural strength of a ceramic material is dependent on both its inherent resistance to fracture and the size and severity of flaws. Variations in these cause a natural scatter in test results for a sample of test specimens. Fractographic analysis of fracture surfaces, although beyond the scope of this test method, is highly recommended for all purposes, especially if the data will be used for design as discussed in Ref (4) and Practices C1322 and C1239. 4.5 This method determines the flexural strength at elevated temperature and ambient environmental conditions at a nominal, moderately fast testing rate. The flexural strength under these conditions may or may not necessarily be the inert flexural strength. Flexure strength at elevated temperature may be strongly dependent on testing rate, a consequence of creep, stress corrosion, or slow crack growth. If the purpose of the test is to measure the inert flexural strength, then extra precautions are required and faster testing rates may be necessary. Note 6: Many ceramics are susceptible to either environmentally assisted slow crack growth or thermally activated slow crack growth. Oxide ceramics, glasses, glass ceramics, and ceramics containing boundary phase glass are particularly susceptible to slow crack growth. Time-dependent effects that are caused by environmental factors (for example, water as humidity in air) may be minimized through the use of in

Standard Test Method for Flexural Strength of Advanced Ceramics at Elevated Temperatures

ASTM C1421-18 环境温度条件下测定先进陶瓷断裂韧度的标准试验方法

5.1 Fracture toughness, KIc, is a measure of the resistance to crack extension in a brittle material. These test methods may be used for material development, material comparison, quality assessment, and characterization. 5.2 The pb and the vb fracture toughness values provide information on the fracture resistance of advanced ceramics containing large sharp cracks, while the sc fracture toughness value provides this information for small cracks comparable in size to natural fracture sources. Cracks of different sizes may be used for the sc method. If the fracture toughness values vary as a function of the crack size it can be expected that KIsc will differ from KIpb and KIvb. Table 1 tabulates advantages, disadvantages, and applicability of each method. 1.1 These test methods cover the fracture toughness, KIc, determination of advanced ceramics at ambient temperature. The methods determine KIpb (precracked beam test specimen), KIsc (surface crack in flexure), and KIvb (chevron-notched beam test specimen). The fracture toughness values are determined using beam test specimens with a sharp crack. The crack is either a straight-through crack formed via bridge flexure (pb), or a semi-elliptical surface crack formed via Knoop indentation (sc), or it is formed and propagated in a chevron notch (vb), as shown in Fig. 1. 1.6 Values expressed in these test methods are in accordance with the International System of Units (SI) and IEEE/ASTM SI8201;10. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Methods for Determination of Fracture Toughness of Advanced Ceramics at Ambient Temperature

BS EN ISO 18753:2017 精细陶瓷（先进陶瓷、先进技术陶瓷） 比重瓶测定陶瓷粉末的绝对密度

Fine ceramics (advanced ceramics, advanced technical ceramics). Determination of absolute density of ceramic powders by pycnometer

JIS R 1616 ERRATUM 1:2017 勘误

ERRATUM

JIS R 1603 ERRATUM 1:2017 勘误

ERRATUM

ISO 26602:2017 精细陶瓷(高级陶瓷、高级工业陶瓷).滚动轴承滚珠和滚子用氮化硅材料

Fine ceramics (advanced ceramics, advanced technical ceramics) - Silicon nitride materials for rolling bearing balls and rollers

BS ISO 19628:2017 精细陶瓷（高级陶瓷、高级技术陶瓷） 陶瓷复合材料的热物理性能 比热容的测定

Fine ceramics (advanced ceramics, advanced technical ceramics). Thermophysical properties of ceramic composites. Determination of specific heat capacity

BS ISO 19810:2017 精细陶瓷(高级陶瓷, 高级工业陶瓷). 室内照明环境下半导体光催化材料自清洁性能的试验方法. 水接触角测量

Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for self-cleaning performance of semiconducting photocatalytic materials under indoor lighting environment. Measurement of water contact angle

JC/T 2396-2017 柴油机颗粒捕集器用壁流式蜂窝陶瓷

Wall flow honeycomb ceramics for diesel particulate traps

JC/T 2403-2017 多孔陶瓷抗热震性试验方法

Test method for thermal shock resistance of porous ceramics

JC/T 2401-2017 电光调制器用透明电光陶瓷

Transparent electro-optical ceramics for electro-optical modulators

JC/T 2404-2017 室温下连续纤维增强陶瓷基复合材料拉伸性能试验方法

Test method for tensile properties of continuous fiber reinforced ceramic matrix composites at room temperature

JC/T 2402-2017 船舶用液相烧结碳化硅陶瓷密封环

Liquid phase sintered silicon carbide ceramic sealing ring for ships

JC/T 2407-2017 陶瓷用氧化锌化学分析方法

Chemical analysis method of zinc oxide for ceramics

JC/T 2406-2017 室温下连续纤维增强陶瓷基复合材料压缩性能试验方法

Test method for compressive properties of continuous fiber reinforced ceramic matrix composites at room temperature

JC/T 2398-2017 机动车尾气净化用复合氧化物陶瓷粉体老化性能的检测方法

Method for testing the aging properties of composite oxide ceramic powder for motor vehicle exhaust gas purification

JC/T 2409-2017 精细陶瓷薄膜结合力测试方法

Test method for adhesion of fine ceramic films

JC/T 2405-2017 室温下连续纤维增强陶瓷基复合材料弯曲强度试验方法

Test method for flexural strength of continuous fiber reinforced ceramic matrix composites at room temperature

ISO 19810:2017 精细陶瓷(高级陶瓷, 高级工业陶瓷). 室内照明环境下半导体光催化材料自清洁性能的试验方法. 水接触角测量

Fine ceramics (advanced ceramics, advanced technical ceramics) - Test method for self-cleaning performance of semiconducting photocatalytic materials under indoor lighting environment - Measurement of water contact angle

ISO 19628:2017 精细陶瓷(高级陶瓷, 高级工业陶瓷). 陶瓷复合材料的热物理性能. 比热容的测定

This document describes two methods for the determination of the specific heat capacity of ceramic matrix composites with continuous reinforcements (1D, 2D, 3D). Unidirectional (1D), bi-directional (2D) and tridirectional (XD, with 2 < x ≤ 3). The two methods are: — method A: drop calorimetry; — method B: differential scanning calorimetry. They are applicable from ambient temperature up to a maximum temperature, depending on the method: method A can be used up to 2250 K, while method B is limited to 1900 K. NOTE Method A is limited to the determination of an average value of the specific heat capacity over a given temperature range and can give a larger spread of results.

Fine ceramics (advanced ceramics, advanced technical ceramics) - Thermophysical properties of ceramic composites - Determination of specific heat capacity