...The diffusion coatings used industrially to impart corrosion resistance, wear resistance, and heat resistance to the surface of carbon steel include chromizing, which is impregnated with chromium, aluminizing, which is impregnated with aluminum (known as Calorizing, a registered trademark), and sheradizing, which is impregnated with zinc. Other examples of diffusion coatings that have been put to practical use include siliconizing, which is impregnated with nonmetallic silicon, and boronizing, which is impregnated with boron. The technology has a long history, and was originally thought to be diffusion through solid-phase contact, but recent research has revealed that it is the same as chemical vapor deposition (CVD), and is due to a chemical transport mechanism mediated by gas-phase compounds. ... *Some terminology explanations that mention "siliconizing" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…炭素鋼の表面に耐食性,耐摩耗性,耐熱性などを付与する目的で工業的に行われる拡散被覆としては,クロムを浸透させるクロマイジングchromizing,アルミニウムを浸透させるアルミナイジングaluminizing(登録商標としてはカロライジングcalorizingが有名),亜鉛を浸透させるシェラダイジングsheradizingがある。このほか,非金属であるケイ素を浸透させるシリコナイジングsiliconizingや,ホウ素を浸透させるボロナイジングboronizingなども実用化されている。技術的には古い歴史をもっており,当初は固相の接触による拡散と考えられていたが,近年の研究によると,化学蒸着(CVD)と同じで,気相化合物を媒介とした化学輸送機構によることが明らかとなった。… ※「siliconizing」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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