Tabletop type, ideal for research and development environments: AGB type, hard material grinding, variable speed compatible.

**Summary** The particle size distribution was measured when glass fragments were crushed using an automatic mortar AGB. After crushing standard microscope slide glass to about 3.5mm, it was further pulverized using the automatic mortar AGB. The crushing time was 5 hours, and the particle size measurement was conducted using a laser diffraction device. **Conclusion** Glass fragments of standard microscope slide glass crushed to about 3.5mm were pulverized using the automatic mortar (Ishikawa-type stirring grinder) AGB. The particle size reached saturation in about 3 hours, achieving a size of approximately 1.7μm. **Testing Equipment** - Testing Equipment - Automatic mortar (Ishikawa-type stirring grinder): AGB - Laser diffraction/scattering particle size distribution measurement device: LA-950V2 (Horiba, Ltd.) *Note: The measurement of particle size distribution was outsourced to an external organization.* **Test Results** When glass fragments of standard microscope slide glass crushed to about 3.5mm were pulverized using the automatic mortar (Ishikawa-type stirring grinder) AGB, the particle size saturated in about 3 hours. The particle size was approximately 1.7μm. Therefore, it is possible to crush glass to a particle size of about 1.7μm using the AGB type.

- Title: Materials Technology for Lithium-Ion Batteries and All-Solid-State Batteries: From Processes to Evaluation Techniques - Editor: Yoji Sakurai (Toyohashi University of Technology) - Co-authors: Ryoji Inada (Toyohashi University of Technology) Yuto Tojo (Shizuoka Institute of Science and Technology) Kazuhiro Hikima (Toyohashi University of Technology) Atsunori Matsuda (Toyohashi University of Technology) Hiroyuki Muto (Toyohashi University of Technology) - Publisher: Science Information Publishing Co., Ltd. URL: https://www.it-book.co.jp/books/124.html ■ Utilization of Our Equipment (AGA) in the Book When investigating the electrochemical properties of a certain electrode active material as a lithium-ion battery, it is necessary to prepare the electrode active material according to the measurement requirements. To ensure the overall electronic conductivity of the electrode and the uniformity of the electrochemical reactions, a conductive additive will be used to create a composite electrode in the future. It is mentioned that our grinding machine (AGA) may be used for this mixing process.

**Introduction to the Paper** Title: Mechanochemical Reactions of Hydrated Crystals Author: Professor Yasuo Arai Summary: The paper titled "Mechanochemical Reactions of Hydrated Crystals" was published in 1971 and provides valuable research findings related to gypsum and lime. This paper was written by Professor Yasuo Arai. The focus of this paper is on the characteristics and mechanisms of mechanochemical reactions in hydrated crystals. Professor Arai conducted a detailed study of the processes by which hydrated crystals, such as gypsum and lime, change under physical stimuli. As a result, he revealed that changes in crystal structure and recrystallization of materials occur during the mechanochemical reactions of hydrated crystals. The equipment used to apply this "physical stimulus" is our company's AGA. The significance of this paper contributes to understanding how mechanochemical reactions of hydrated crystals affect the applications of gypsum and lime. Furthermore, this research suggests potential applications in fields such as materials science and architectural engineering. References: Arai, Yasuo. "Gypsum and Lime," 1971. "Mechanochemical Reactions of Hydrated Crystals."