翻訳と辞書 Words near each other ・ Self-portrait with a sunflower ・ Self-Portrait with Bandaged Ear ・ Self-Portrait with Beret and Turned-Up Collar ・ Self-portrait with dishevelled hair ・ Self-portrait with Dr Arrieta ・ Self-Portrait with Halo and Snake ・ Self-Portrait with Model at Bergamo ・ Self-Portrait with Monkey ・ Self-Portrait with Palette (Manet) ・ Self-Portrait with Seven Fingers ・ Self-portrait with Sir Endymion Porter ・ Self-hatred ・ Self-healing ・ Self-healing hydrogels ・ Self-healing juvenile cutaneous mucinosis ・ Self-healing material ・ Self-healing papular mucinosis ・ Self-healing ring ・ Self-heating can ・ Self-heating food packaging ・ Self-Help ・ Self-help ・ Self-Help (album) ・ Self-Help (book) ・ Self-help (disambiguation) ・ Self-help (law) ・ Self-help book ・ Self-help group ・ Self-help group (finance) ・ Self-Help Group for Cerebral Palsy Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Self-healing material ： ウィキペディア英語版 Self-healing material Self-healing materials are a class of smart materials that have the structurally incorporated ability to repair damage caused by mechanical usage over time. The inspiration comes from biological systems, which have the ability to heal after being wounded. Initiation of cracks and other types of damage on a microscopic level has been shown to change thermal, electrical, and acoustical properties, and eventually lead to wholescale failure of the material. Usually, cracks are mended by hand, which is unsatisfactory because cracks are often hard to detect. A material that can intrinsically correct damage caused by normal usage could lower costs of a number of different industrial processes through longer part lifetime, reduction of inefficiency over time caused by degradation, as well as prevent costs incurred by material failure.〔 For a material to be strictly defined as self-healing, it is necessary that the healing process occurs without human intervention. Some examples shown below, however, include healing polymers that require intervention to initiate the healing process. == Polymer breakdown == From a molecular perspective, traditional polymers yield to mechanical stress through cleavage of sigma bonds. While newer polymers can yield in other ways, traditional polymers typically yield through homolytic or heterolytic bond cleavage. The factors that determine how a polymer will yield include: type of stress, chemical properties inherent to the polymer, level and type of solvation, and temperature.〔 From a macromolecular perspective, stress induced damage at the molecular level leads to larger scale damage called microcracks. A microcrack is formed where neighboring polymer chains have been damaged in close proximity, ultimately leading to the weakening of the fiber as a whole.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Self-healing material」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.