Effects of MoO₃ excess on the crystal and microstructural characteristics of MnTeMoO6 (MnTeMoO6 에서 MoO3 잉여 첨가가 결정 및 미세구조에 미치는 영향)

Moon-Se Kim (김문세); Kyoung-Seok Moon (문경석)

doi:10.6111/JKCGCT.2025.35.4.124

Effects of MoO₃ excess on the crystal and microstructural characteristics of MnTeMoO6

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2025, 35(4), pp.124~130
DOI : 10.6111/JKCGCT.2025.35.4.124
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering
Received : October 10, 2025
Accepted : November 5, 2025
Published : December 31, 2025

Moon-Se Kim ¹, Kyoung-Seok Moon ²

¹경상국립대학교
²경상대학교경상대학교 나노·신소재공학부 세라믹공학과

Accredited

ABSTRACT

This study investigates the effects of MoO₃ excess on the crystal structure and microstructure of MnTeMoO6 (MTMO), a candidate ULTCC material for high-frequency devices. MTMO powders were prepared by solid-state reaction with 0.5, 1.0, and 2.0mol% MoO₃ additions and sintered at 700°C. X-ray diffraction confirmed a single orthorhombic phase across all samples without secondary phases. SEM analysis suggested excess MoO₃ could modify the chemistry of interface liquids, reduce grain shape anisotropy, and regulate grain growth. This reduction in anisotropy is attributed to increased atomically disordered interfaces and a lowered critical driving force for grain growth, consistent with the predictions of two-dimensional nucleation and growth theory. The findings demonstrate that controlled MoO₃ addition enables microstructure tuning, improving process compatibility and performance for ULTCC applications.

KEYWORDS

MnTeMoO₃, Microstructure, Crystal structure, ULTCC

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Journal of the Korean Crystal Growth and Crystal Technology 2025 KCI Impact Factor : 0.14 KCI-WoS Impact Factor : 0.45

Effects of MoO₃ excess on the crystal and microstructural characteristics of MnTeMoO6

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* References for papers published after 2025 are currently being built.

Journal of the Korean Crystal Growth and Crystal Technology 2025 KCI Impact Factor : 0.14 KCI-WoS Impact Factor : 0.45

Effects of MoO₃ excess on the crystal and microstructural characteristics of MnTeMoO6

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KEYWORDS

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