Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Scandium-doped yttrium titanate thermal barrier coating material and preparation method thereof
The invention belongs to the technical field of thermal barrier coatings, and particularly relates to a scandium-doped yttrium titanate thermal barrier coating material and a preparation method thereof. The yttrium titanate material applied to the fields of gas sensing, photovoltaics and microwaves is modified by doping rare earth scandium Sc and then serves as a ceramic layer of the thermal barrier coating, the chemical composition of the ceramic layer material is (Y1-xScx) 2Ti2O7, and x is equal to 0.1-0.2; the Sc ions are doped, so that the heat insulation performance of the yttrium titanate material can be improved, and the bonding strength between the yttrium titanate material and a matrix is remarkably improved, and therefore, the scandium-doped yttrium titanate ceramic thermal barrier coating material with excellent mechanical property and heat insulation performance is provided. On the basis of ensuring high-temperature phase stability and low thermal conductivity, the bonding strength between the thermal barrier coating and the matrix is improved, and the thermal barrier coating material can be suitable for an alternative material of a high-temperature thermal barrier coating of an aviation turbine engine and has the advantages of being low in cost, simple in process, easy to control and suitable for industrial mass production.
本发明属于热障涂层技术领域，具体为一种钪掺杂钛酸钇的热障涂层材料及其制备方法。本发明将应用于气体传感、光伏和微波领域的钛酸钇材料通过掺杂稀土钪Sc元素改性进而用作热障涂层的陶瓷层，该陶瓷层材料化学组成为(Y1‑xScx)2Ti2O7，其中x＝0.1～0.2；Sc离子的掺杂在能够提升钛酸钇材料隔热性能的同时，更是显著提升了其与基体间的结合强度，从而提供了一种力学性能和隔热性能优异的钪掺杂钛酸钇陶瓷热障涂层材料。本发明在保证高温相稳定性及低热导率的基础上，提高了热障涂层与基体间的结合强度，该热障涂层材料可适用于航空涡轮发动机高温热障涂层的备选材料，并具有成本较低、工艺简单、易于控制、适合工业化量产的优点。
Scandium-doped yttrium titanate thermal barrier coating material and preparation method thereof
The invention belongs to the technical field of thermal barrier coatings, and particularly relates to a scandium-doped yttrium titanate thermal barrier coating material and a preparation method thereof. The yttrium titanate material applied to the fields of gas sensing, photovoltaics and microwaves is modified by doping rare earth scandium Sc and then serves as a ceramic layer of the thermal barrier coating, the chemical composition of the ceramic layer material is (Y1-xScx) 2Ti2O7, and x is equal to 0.1-0.2; the Sc ions are doped, so that the heat insulation performance of the yttrium titanate material can be improved, and the bonding strength between the yttrium titanate material and a matrix is remarkably improved, and therefore, the scandium-doped yttrium titanate ceramic thermal barrier coating material with excellent mechanical property and heat insulation performance is provided. On the basis of ensuring high-temperature phase stability and low thermal conductivity, the bonding strength between the thermal barrier coating and the matrix is improved, and the thermal barrier coating material can be suitable for an alternative material of a high-temperature thermal barrier coating of an aviation turbine engine and has the advantages of being low in cost, simple in process, easy to control and suitable for industrial mass production.
本发明属于热障涂层技术领域，具体为一种钪掺杂钛酸钇的热障涂层材料及其制备方法。本发明将应用于气体传感、光伏和微波领域的钛酸钇材料通过掺杂稀土钪Sc元素改性进而用作热障涂层的陶瓷层，该陶瓷层材料化学组成为(Y1‑xScx)2Ti2O7，其中x＝0.1～0.2；Sc离子的掺杂在能够提升钛酸钇材料隔热性能的同时，更是显著提升了其与基体间的结合强度，从而提供了一种力学性能和隔热性能优异的钪掺杂钛酸钇陶瓷热障涂层材料。本发明在保证高温相稳定性及低热导率的基础上，提高了热障涂层与基体间的结合强度，该热障涂层材料可适用于航空涡轮发动机高温热障涂层的备选材料，并具有成本较低、工艺简单、易于控制、适合工业化量产的优点。
Scandium-doped yttrium titanate thermal barrier coating material and preparation method thereof
一种钪掺杂钛酸钇的热障涂层材料及其制备方法
WANG XIN (Autor:in) / QIAN WEIQIANG (Autor:in)
16.07.2024
Patent
Elektronische Ressource
Chinesisch
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