Recent progress and challenges of transparent AlON ceramics

Ceramics 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].

The first of the New Year a thank-you note | top professional and efficient service won the praise of science and technology

"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."

Orange continent BBS | "a new generation of semiconductor frontier technology round-table conference" was held successfully

On 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

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

On 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".

Only two make the cut | ACME in the 2022 Model Enterprise of industry-university-research Cooperation in China

Recently, 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.

ACME was awarded Hunan Industrial Design Center