A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CERAMIC SPHERICAL BODY
To provide media, such as balls and beads, used in a grinder, wherein breakages are hardly caused even when grind and dispersion are performed in a state where water is high in temperature, and an object to be ground is prevented from being colored.SOLUTION: A ceramic spherical body mainly comprises zirconia, has 80 vol.% or more and 95% or less of tetragonal crystal and 5 vol.% or less of monoclinic crystal, and has an internal defect ratio of 0.5% or less, wherein color tones, expressed in an RGB color model, of a surface of the ceramic spherical body are 230≤R≤255, 230≤G≤255, and 230≤B≤255.SELECTED DRAWING: None
【課題】粉砕機に用いられるボール、ビーズ等のメディアであって、水温が高い状態で粉砕・分散を行っても破損が生じにくく、被粉砕物の着色を抑制するものを提供すること。【解決手段】ジルコニアを主成分とし、正方晶の割合が８０容積％以上９５容積％以下、単斜晶の割合が５容積％以下であり、内部欠陥率が０．５％以下であるセラミックス球形体であって、前記セラミックス球形体表面のＲＧＢカラーモデルで表される色調が２３０≦Ｒ≦２５５、２３０≦Ｇ≦２５５および２３０≦Ｂ≦２５５であるセラミックス球形体。【選択図】なし
CERAMIC SPHERICAL BODY
To provide media, such as balls and beads, used in a grinder, wherein breakages are hardly caused even when grind and dispersion are performed in a state where water is high in temperature, and an object to be ground is prevented from being colored.SOLUTION: A ceramic spherical body mainly comprises zirconia, has 80 vol.% or more and 95% or less of tetragonal crystal and 5 vol.% or less of monoclinic crystal, and has an internal defect ratio of 0.5% or less, wherein color tones, expressed in an RGB color model, of a surface of the ceramic spherical body are 230≤R≤255, 230≤G≤255, and 230≤B≤255.SELECTED DRAWING: None
【課題】粉砕機に用いられるボール、ビーズ等のメディアであって、水温が高い状態で粉砕・分散を行っても破損が生じにくく、被粉砕物の着色を抑制するものを提供すること。【解決手段】ジルコニアを主成分とし、正方晶の割合が８０容積％以上９５容積％以下、単斜晶の割合が５容積％以下であり、内部欠陥率が０．５％以下であるセラミックス球形体であって、前記セラミックス球形体表面のＲＧＢカラーモデルで表される色調が２３０≦Ｒ≦２５５、２３０≦Ｇ≦２５５および２３０≦Ｂ≦２５５であるセラミックス球形体。【選択図】なし
CERAMIC SPHERICAL BODY
セラミックス球形体
SHINKAI MASAYUKI (author) / MITSUNO AKINORI (author) / KAMII YASUHIRO (author)
2021-12-13
Patent
Electronic Resource
Japanese
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