Science of textures for earth and planetary materials

由地球和类地行星组成的材料以及相关的实验产品，根据它们的形成条件和历史，具有从微观的原子尺度到宏观的多种纹理。本研究的目的是超越单个科学领域的界限，通过不同的描述、实验和理论方法，系统地了解纹理的形成和功能。每学年举办两次研究会议或一次会议及工作坊。在“成像、实验和模拟技术研讨会(1)和(2)”中，对纹理定量描述的基本方法，特别是成像技术的建立，以及纹理形成的实验和模拟进行了讨论。在研究会议上，地球和行星材料以及图案形成物理学的研究人员积极讨论了纹理的形成和功能。在地球和行星材料和金属的纹理科学之间的差异也进行了讨论。结果表明，复杂体系特别是复合体系中图案形成的物理过程是揭示织构形成的最重要的线索，发展微观和宏观性质相结合的方法（如分子模拟和均质化相结合的方法）对阐明织构的功能具有重要意义。

Materials composed of earth an terrestrial planets and related experimental products have a variety of textures, from microscopic in atomic scales to macroscopic, depending on their conditions during formation and their histories. The purpose of the present study was to understand the formation and functions of the textures systematically by different approaches of describing, experimental and theoretical methods beyond the boundaries of individual scientific fields. Two research meetings or one meeting and one workshop were held in each academic year. In the "technical workshop on imaging, experiments and simulation (1) and (2)", establishment of basic method on quantitative description of the textures, especially on imaging technique, and experiments and simulations of texture formation were performed and discussed. In the research meetings, formation and functions of the textures were actively discussed by researchers both on earth and planetary materials and pattern formation physics. Differences between sciences on the textures of earth and planetary materials and metals were also discussed. As a result, it was concluded that the pattern formation physics in complex systems, especially in composite systems, is the most important clue to the formation of the textures, and that the development of a method which combines microscopic and macroscopic properties (e.g., combination of molecular simulation and homogenization method) is important to elucidate the functions of the textures.