The development of aerospace is one of the important symbols of human modernization,and also the embodiment of the national science and technology level and industry level.Materials and aerospace have been developing continuously under mutual promotion, and the application of advanced materials is one of the most important driving forces for the development and progress of aerospace technology. Therefore, aerospace materials are the basis for the technical performance, survivability, life extension and economic affordability of aerospace products, which are key technologies for priority development and key breakthroughs.
Powder metallurgy has made great contributions to the research and development of aerospace materials and complex structural components, which has great potential and competitiveness in aerospace construction. Powder metallurgy is a process technology for preparing metal powder or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, through forming and sintering, to manufacture metal materials, composite materials and various types of products. It has a unique chemical composition and mechanical and physical properties, which cannot be obtained by traditional casting methods. It is common knowledge that the aerospace industry has very strict requirements on material properties. In addition to the materials with the highest stability and specific strength, the materials are usually required to have the highest comprehensive performance. There are two types of powder metallurgy materials used in the aviation industry. One type is special functional materials, such as friction materials, anti-wear materials, sealing materials, filter materials, etc., which are mainly used for auxiliary machines, instruments and airborne equipment of aircraft engines. The other is high-temperature and high-strength structural materials, which are mainly used for important structural components on the main engine of aircraft engines.
The feature of this book is to sort out the types of powder metallurgy materials and their technical application research detailedly. It systematically shows the application and technological progress of powder metallurgy materials in aerospace. The system of powder metallurgy materials is more complete, and the application technology advances with the times. Aerospace powder metallurgy theory and techniques help to address significant needs in aerospace material preparation and processing. We hope the book will be helpful for the development of aerospace powder metallurgy theory and technology and the solution to the major needs of aerospace material preparation and processing.
The content structure of this book is planned by Peng Wenfei. Each chapter is co-written by Peng Wenfei, Moliar Oleksandr, Lin Longfei, Shao Yiyu, Li He and Suo Xinkun of Ningbo University, Trotsan Anatolii and Tishchenko Anton of Ningbo Wuzhong Yuanjing Copper Co., Ltd.
This book is supported by the National Natural Science Foundation of China (No.52075272 and No. 51405248), the Major Special Projects in Ningbo (No. 2019B10100 and No. 2021Z099) and Publishing Fund of Academic Library of Ningbo University. We are grateful to Ninghai Kechuang Group Co., Ltd.—Ningbo University High Performance Lightweight Manufacturing Research Institute, China Research Center of Frantsevich Institute for Problems of Materials Science of Ukrainian National Academy of Sciences and Ningbo Wuzhong Yuanjing Copper Co., Ltd., Part Rolling Key Laboratory of Zhejiang Province, Key Laboratory of Impact and Safety Engineering, Ministry of Education for providing good facilities and conditions for related research.
Due to the rapid development of powder metallurgy science and technology and the limitation of the author's level, there are inevitably some inaccuracies in the book, hoping readers to criticize and correct them.

Peng Wenfei and Moliar Oleksandr