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In this work, according to the Design of experiments for mixtures, 10 mixture compositions were selected, in this study. After Spark Plasma Sintering of mixtures at 1700 °C, 80 MPa and dwell 3 min, the relative density and flexural strength of sintered samples were measured. Relative density of the composites was calculated as the ratio of the bulk density to the measured density of the powder compositions. The experimental results of relative density and flexural strength were processed using Minitab 17 and adequate models were obtained. The behavior of relative density and flexural strength can be predicted by adequate models within the limits of the conducted studies. Based on the obtained equations, contour plots of relative density and flexural strength of sintered samples were made in the Al2O3–TiC–TiB2 ternary phase diagram for a visual representation of the predicted results. A diagram with a zone, which combines the relative densities greater than 99% and flexural strength greater than 550 MPa, was made. Based on the obtained results, it can be concluded that the use of Design of experiments for mixtures for a ternary phase diagram is a simple and effective method to predict the physical and mechanical properties of ceramic composite materials. Moreover, it is likely suitable for predicting other properties that are associated with the quantitative content of components.

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Design of Mixture Experiments for the Prediction of Physical and Mechanical Properties of Composites Based on Al2O3–TiB2–TiC

  • 会议论文

  • 发表日期：

    2025年

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  • Nestor W. Solis Pinargote,
  • Ekaterina V. Kuznetsova,
  • Aleksandra Yu Kurmysheva,
  • Anton Smirnov,
  • Yaroslav R. Meleshkin

摘要

In this work, according to the Design of experiments for mixtures, 10 mixture compositions were selected, in this study. After Spark Plasma Sintering of mixtures at 1700 °C, 80 MPa and dwell 3 min, the relative density and flexural strength of sintered samples were measured. Relative density of the composites was calculated as the ratio of the bulk density to the measured density of the powder compositions. The experimental results of relative density and flexural strength were processed using Minitab 17 and adequate models were obtained. The behavior of relative density and flexural strength can be predicted by adequate models within the limits of the conducted studies. Based on the obtained equations, contour plots of relative density and flexural strength of sintered samples were made in the Al2O3–TiC–TiB2 ternary phase diagram for a visual representation of the predicted results. A diagram with a zone, which combines the relative densities greater than 99% and flexural strength greater than 550 MPa, was made. Based on the obtained results, it can be concluded that the use of Design of experiments for mixtures for a ternary phase diagram is a simple and effective method to predict the physical and mechanical properties of ceramic composite materials. Moreover, it is likely suitable for predicting other properties that are associated with the quantitative content of components.