journal article·2019-04

Surface crystallization and gas bubble formation during conventional heat treatment in Na2MnP2O7 glass

Chiharu Akatsuka, Tsuyoshi Honma, Ralf Müller, Stefan Reinsch, Satoshi Tanaka, Takayuki Komatsu

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Abstract

Abstract The crystallization behavior of sodium ion conductive Na2MnP2O7 glass was examined to clarify the crystallization mechanism. The formation of thermodynamically metastable phase, layered Na2MnP2O7, at the surface of the glass occurred. Heat treatment at 430 °C for 3 h lead to surface crystals of Na2MnP2O7 oriented with the (101) direction perpendicular to the sample surface. As the heat treatment temperature increased, the glass-ceramic samples deformed, and the presence numerous micro bubbles due to dissolved water was detected.
Source: openaire · Quality: candidate unverified · Source record ↗

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OpenAlex topics: Advancements in Battery Materials · Transition Metal Oxide Nanomaterials · Glass properties and applications

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