본문 바로가기
  • Home

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.

Citation status

* References for papers published after 2024 are currently being built.