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Ceramic wave-absorbing material and preparation method thereof
The invention discloses a ceramic wave-absorbing material and a preparation method thereof. The chemical composition of the ceramic wave-absorbing material is A (2-2x)/3BxTiO3, A is at least one of La, Pr and Nd, B is at least one of Ca, Ba and Sr, and x is greater than or equal to 0.1 and less than or equal to 0.7. The ceramic wave-absorbing material disclosed by the invention can show extremely strong radar wave-absorbing capacity in an X-Ku wave band range under the condition that the total thickness is not greater than 0.65 mm, and has relatively low heat conductivity, relatively high heat stability, relatively large thermal expansion coefficient and excellent oxidation resistance.
本发明公开了一种陶瓷吸波材料及其制备方法。该陶瓷吸波材料的化学组成为A(2‑2x)/3BxTiO3，其中，A为La、Pr和Nd中的至少之一，B为Ca、Ba和Sr中的至少之一，0.1≤x≤0.7。本发明的陶瓷吸波材料可在不大于0.65mm的总厚度下，在X‑Ku波段范围内表现出极强的雷达吸波能力，并且具有较低的热导率、较高的热稳定性、较大的热膨胀系数和出色的抗氧化性。
Ceramic wave-absorbing material and preparation method thereof
The invention discloses a ceramic wave-absorbing material and a preparation method thereof. The chemical composition of the ceramic wave-absorbing material is A (2-2x)/3BxTiO3, A is at least one of La, Pr and Nd, B is at least one of Ca, Ba and Sr, and x is greater than or equal to 0.1 and less than or equal to 0.7. The ceramic wave-absorbing material disclosed by the invention can show extremely strong radar wave-absorbing capacity in an X-Ku wave band range under the condition that the total thickness is not greater than 0.65 mm, and has relatively low heat conductivity, relatively high heat stability, relatively large thermal expansion coefficient and excellent oxidation resistance.
本发明公开了一种陶瓷吸波材料及其制备方法。该陶瓷吸波材料的化学组成为A(2‑2x)/3BxTiO3，其中，A为La、Pr和Nd中的至少之一，B为Ca、Ba和Sr中的至少之一，0.1≤x≤0.7。本发明的陶瓷吸波材料可在不大于0.65mm的总厚度下，在X‑Ku波段范围内表现出极强的雷达吸波能力，并且具有较低的热导率、较高的热稳定性、较大的热膨胀系数和出色的抗氧化性。
Ceramic wave-absorbing material and preparation method thereof
陶瓷吸波材料及其制备方法
WAN CHUNLEI (author) / DUAN ZEWEN (author) / CUI RUOPENG (author) / LIU XIANGYANG (author)
2024-08-20
Patent
Electronic Resource
Chinese
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