Optimization of ball milling process for fabrication of α-Al2O3 based coatings via laser-assisted combustion synthesis

Effect of Cr2O3 nanosheet insertion on the deuterium permeation behavior of a Cr-Zr-O coating

“…The permeation reduction factor (PRF) and permeation flux are two important indexes that are used to measure the performance of a deuterium permeation barrier. The self-constructed gasdriven deuterium permeation test device was depicted in our previous work [22][23][24][25][26], which is separated by the sample into upstream and downstream cavities. A dynamic vacuum (10 −5 Pa) is kept in the upstream and downstream cavities by two molecular pumps.…”

Thermochemically synthesized α‐Al2O3 composite coating with high bonding strength and deuterium permeation resistance

“…[8][9][10] Among these ceramics, α-Al 2 O 3 is the most promising HPB candidate because of its much higher hydrogen resistance, high electrical resistivity, combined with excellent thermal and chemical stability. [11][12][13][14][15] Several technologies have been adopted to fabricate Al 2 O 3 coatings, including pack cementation aluminizing, 16 chemical vapor deposition, 17 ionic liquid plating, 18,19 metal-organic decomposition, 20,21 and sol-gel. 22,23 However, the resulted coatings were almost always composed of amorphous and/or metastable γ-Al 2 O 3 phase.…”

“…Various ceramic materials have been tried for reducing hydrogen isotope permeation, such as Al 2 O 3 , Cr 2 O 3 , Er 2 O 3 , ZrO 2 , Y 2 O 3 , SiC, TiC, and TiN 8–10 . Among these ceramics, α‐Al 2 O 3 is the most promising HPB candidate because of its much higher hydrogen resistance, high electrical resistivity, combined with excellent thermal and chemical stability 11–15 . Several technologies have been adopted to fabricate Al 2 O 3 coatings, including pack cementation aluminizing, 16 chemical vapor deposition, 17 ionic liquid plating, 18,19 metal‐organic decomposition, 20,21 and sol–gel 22,23 .…”