On January 15, 2017, the international standard ISO 20343:2017 "Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for determining elastic modulus of thick ceramic coatings at elevated temperature," mainly drafted and promoted by CTC, was officially published at ISO headquarters. This is the sixth new international standard successfully published by CTC, following ISO 13124, the first international standard in China's building materials industry transformed from independent intellectual property technology, and was independently completed by the Central Research Institute led by Chief Scientist Bao Yiwang.

Ceramic coatings are used in important components in many fields due to their good high-temperature resistance, friction and wear resistance, and chemical corrosion resistance. For ceramic coatings used in high-temperature environments, accurately evaluating their high-temperature mechanical properties has long been an important international challenge because it is difficult to build a high-temperature testing environment and the coating is difficult to separate from the substrate.

In 2013, when ISO solicited ceramic coating testing technologies from around the world, CTC submitted the relative method to ISO/TC 206 through the Standardization Administration of China to compete with proposals from other countries. After fierce competition and discussion, due to the originality and universality of the Chinese proposal, the ISO Advisory Committee ultimately approved the proposal.

The international standard was officially approved as a project in ISO/TC 206 in March 2014. After more than two years, it went through multiple stages including NP, WD, CD, DIS, and FDIS. During this period, CTC established a theoretical model, went through multiple international meeting discussions, received a large number of opinions from international industry experts and competitors, conducted detailed summarization, analysis, and calculation of various opinions, and carried out extensive experimental verification of the influence of various test factors, ultimately obtaining unanimous recognition from international experts.

ISO 20343 establishes a test method for the high-temperature elastic modulus of thick ceramic coatings. Its successful publication not only accurately evaluates the high-temperature elastic modulus of ceramic coatings and fills the technical gap in ceramic coatings at home and abroad, but is also of great significance for ensuring the safety and reliability of the entire structure, optimizing production processes, and especially for military products and national defense construction. At the same time, it also demonstrates CTC's innovation capability and core competitiveness as a high-tech service industry in inspection and certification. In the future, CTC will continue to focus on scientific research and innovation capabilities, and strive for more international discourse power for the development of China's building materials testing industry!