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【International leading】three scientific and technological achievements of ACME have been identified
2023-09-07Recently, three ACME achievements successfully passed the scientific and technological achievements evaluation, of which two are internationally leading and one is internationally advanced.
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ACME Participated in the Non-ferrous Metal Think Tank Xiangjiang Forum and co-hosted the "2023 Waste power battery Recycling and recycling technology Exchange Meeting"
2023-08-28On August 18, the 2023 China Nonferrous Metals think Tank Xiangjiang Forum was held in Changsha City, and more than 1,200 experts, scholars and business representatives from the field of nonferrous metals attended the meeting. The conference is hosted by MCC Nonferrous Technology Platform, MCC Nonferrous Technology Network and China Nonferrous Metals Think Tank.
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Dai Yu, the Chairman of ACME，was invited to attend the National Symposium on New carbon materials and make an academic report
2023-08-25On August 14-16, 2023, the 16th National Symposium on New Carbon Materials was held in Taiyuan, Shanxi Province. The symposium was hosted by Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences and Shanxi Association of Science and Technology, and was attended by more than 400 representatives from universities, research institutes and enterprises across the country. The conference is a representative academic exchange conference in the field of carbon materials in China and is held every two years。
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ACME participated in the 13th National Heat Treatment Conference and was awarded
2023-08-25From August 19 to 20, the 13th National Heat Treatment Conference hosted by the Heat Treatment Branch of the Chinese Mechanical Engineering Society and the 60th anniversary report of the establishment of the Heat treatment Society was held in Hefei, and more than 900 experts, scholars, representatives of entrepreneurs and technical personnel from universities, research institutes and enterprises across the country attended the meeting.
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Dr. Dai Yu's monograph "Advanced Composite High temperature Thermal Equipment" was officially published
2023-07-03Recently, Dr. Dai Yu, chairman of ACME and chairman of Changsha Composite Materials Society, published his monograph Advanced Composite High Temperature Thermal Equipment by Central South University Press.
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Recent progress and challenges of transparent AlON ceramics
2023-05-10Ceramics and their composites have been widely investigated for various applications due to their unique chemical and physics properties [1−7]. Among them, transparent ceramics have an extensive application in the business domain and the military industries due to their outstanding optical, physical, and mechanical properties [8−10]. Among the transparent ceramics, transparent aluminum oxynitride (AlON) ceramics have been considered as one of the most important ceramics in the domes, infrared and visible windows, and transparent armors, etc [11−13]. Compared with the single crystal sapphire, which is well-known as the hardest transparent ceramics, the polycrystalline AlON ceramics have similar characteristics on strength, hardness, and optical properties, but offer more flexibility in size and shape [14,15]. Therefore, AlON ceramics have attracted a growing investigation. γ-AlON is a solid solution of Al2O3and AlN [16,17]. Many methods have been explored to prepare AlON powder or AlON ceramics, such as solid-state reaction [18], carbonization method for Al2O3[19,20], chemical vapor deposition [21], sol−gel method [22,23], and solution combustion synthesis [24]. The band gap of AlON was measured to be 6.2 eV [25]. TU et al [26] employed a first-principles density functional theory (DFT) to study the on-site preference of Al vacancy and Natoms in γ-AlON. The band gap and bulk modulus structural model of γ-AlON, as the local structure of the Al23O27N5were calculated to be 3.99 eV of N atoms and Al vacancies in γ-AlON is not and 200.9 GPa, respectively. Given a wide band clear. The properties of γ-AlON are displayed in gap together with low photon energy and high Table 1 [14].
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