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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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The first of the New Year a thank-you note | top professional and efficient service won the praise of science and technology
2023-03-21"Your company staff installation and debugging meticulous, due diligence, urgent customer needs, to ensure that our company's products delivered on schedule, reflecting a higher professional quality and dare to fight the dedication."
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Orange continent BBS | "a new generation of semiconductor frontier technology round-table conference" was held successfully
2023-03-10On the afternoon of March 3rd, a series of activities of Tangzhou Forum "New Generation Semiconductor Frontier Technology Roundtable" was successfully held in Yuelu Mountain University. The conference was co-sponsored by Changsha Integrated Circuit Industry Technology Innovation Strategic Alliance, Yuelu Mountain University Technology City Management Committee, Changsha Semiconductor Technology and Application Innovation Research Institute and co-organized by ACME
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The national key R&D program "Multidimensional Performance Evaluation Research and Integrated Application of Solid Waste Resource Technology" that ACME participated in successfully passed the verification and technical evaluation
2023-02-27On February 19th, ACME held a meeting on site verification and technical index evaluation of the project of "Multi-dimensional Performance Evaluation Research and Integrated Application of Solid Waste Recycling Technology", a key special project of national key research and development plan "Solid Waste Recycling".
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Only two make the cut | ACME in the 2022 Model Enterprise of industry-university-research Cooperation in China
2023-02-17Recently, the China Association for the Promotion of Industry-University-Research Cooperation announced the list of "China's Industry-University-research Cooperation Innovation Model Enterprises in 2022". ACME was selected for its outstanding achievements and comprehensive strength in industry-university-research cooperation innovation, technology research and development, and scientific and technological achievements transformation.
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