Titanium Nitride and Yttrium Titanate Nanocomposites, Endowed with Renewable Self‐Healing Ability (Adv. Mater. Interfaces 22/2021). Issue 22 (23rd November 2021)

• Record Type: Journal Article
• Authors: Nguyen, Son Thanh; Okawa, Ayahisa; Iwasawa, Hirokazu; Nakayama, Tadachika; Hashimoto, Hideki; Sekino, Tohru; Suematsu, Hisayuki; Niihara, Koichi
• Is Part Of: Advanced materials interfaces. Volume 8:Issue 22(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-11-23
• Subjects: environmental barrier coating -- renewable self‐healing -- strength recovery -- titanium nitride -- yttrium titanate; Materials science -- Periodicals; 620.11
• DOI: 10.1002/admi.202170126
• Languages: English
• ISSNs: 2196-7350

Abstract

Abstract : Crack‐Healing Ability of Y2 Ti2 O7 –Y2 TiO5 –TiN Composite In article number 2100979, Son Thanh Nguyen, Ayahisa Okawa, Tadachika Nakayama, and co‐workers develop a ceramic‐based nanocomposite with renewable self‐healing ability. First, the composite is heat‐treated in nitrogen atmosphere (red molecules) and the surface is covered by titanium nitride (yellow). Then, owing to oxidation (blue molecules represent oxygen) the surface turns to titanium oxide (gray), and the crack is healed by volume expansion. The self‐healing function can be renewed after each thermal cycle. Cover image by Ayahisa Okawa.