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Abstract <p>The modified Stepanov method was used to obtain fibers of the following compositions: sapphire–yttrium–aluminum garnet (Al<sub>2</sub>O<sub>3</sub>–Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>), sapphire–erbium–aluminum garnet (Al<sub>2</sub>O<sub>3</sub>–Er<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>), and sapphire–aluminum gadolinium perovskite (Al<sub>2</sub>O<sub>3</sub>–AlGdO<sub>3</sub>). The effect of crystallization rate on the structure of fibers obtained was studied. It was found that the characteristic dimensions of the structure components decrease with an increase in rate, which corresponds to the Hunt–Jackson eutectic crystallization model. Fibers were tested for strength under bending conditions. Decreasing dependences of fiber strength on their length are presented.</p>

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Structure and Strength of Oxide Eutectic Fibers Obtained by the Stepanov Method

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • V. M. Kiiko,
  • D. O. Stryukov

摘要

Abstract

The modified Stepanov method was used to obtain fibers of the following compositions: sapphire–yttrium–aluminum garnet (Al2O3–Y3Al5O12), sapphire–erbium–aluminum garnet (Al2O3–Er3Al5O12), and sapphire–aluminum gadolinium perovskite (Al2O3–AlGdO3). The effect of crystallization rate on the structure of fibers obtained was studied. It was found that the characteristic dimensions of the structure components decrease with an increase in rate, which corresponds to the Hunt–Jackson eutectic crystallization model. Fibers were tested for strength under bending conditions. Decreasing dependences of fiber strength on their length are presented.