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ZrB2 non-equilibrium alloying modification-based high oxygen barrier coating and preparation method thereof
The invention discloses a ZrB2 non-equilibrium alloying modification-based high oxygen barrier coating and a preparation method thereof, and is applicable to the technical field of carbon materials. The preparation method comprises the following steps: mixing 5-30% by mass of zirconium powder, 5-30% by mass of molybdenum powder, 10-60% by mass of silicon powder and 10-60% by mass of boron powder to prepare a cylindrical blank, preparing a non-equilibrium alloying precursor ZrB2-MoSi2 mixture with alloying characteristics in a combustion synthesis reaction kettle by a self-propagating high-temperature synthesis method, crushing and drying the ZrB2-MoSi2 mixture, wrapping a non-equilibrium alloyed precursor on the outer side of a carbon matrix needing to prepare the high-oxygen-barrier coating by using a mold, then carrying out spark plasma SPS sintering on the carbon matrix, and finally generating the ZrB2-MoSi2 high-oxygen-barrier coating on the surface of the carbon matrix. The method is simple and practical, the oxidation resistance of the ZrB2-MoSi2 coating can be remarkably improved, oxidation protection on a carbon matrix is improved, and the coating is excellent in comprehensive performance and has wide development prospects.
本发明公开了一种基于ZrB2非平衡态合金化修饰的高阻氧涂层及制备方法，适用于碳材料技术领域使用。以质量分数：5‑30％锆粉，5‑30％钼粉，10‑60％硅粉，10‑60％硼粉混合并制成圆柱坯体，在燃烧合成反应釜内以自蔓延高温合成法制备获得具有合金化特性的非平衡态合金化前驱体ZrB2‑MoSi2的混合体，将ZrB2‑MoSi2混合体破碎干燥，利用模具将非平衡态合金化前驱体包裹在需要制备高阻氧涂层的碳基体外侧，之后对碳基体进行放电等离子SPS烧结，最终在碳基体表面上生成ZrB2‑MoSi2高阻氧涂层。方法简单实用，可以显著提升ZrB2‑MoSi2涂层的抗氧化性能，提升对碳基体的氧化防护，且涂层综合性能优异，具有广阔的发展前景。
ZrB2 non-equilibrium alloying modification-based high oxygen barrier coating and preparation method thereof
The invention discloses a ZrB2 non-equilibrium alloying modification-based high oxygen barrier coating and a preparation method thereof, and is applicable to the technical field of carbon materials. The preparation method comprises the following steps: mixing 5-30% by mass of zirconium powder, 5-30% by mass of molybdenum powder, 10-60% by mass of silicon powder and 10-60% by mass of boron powder to prepare a cylindrical blank, preparing a non-equilibrium alloying precursor ZrB2-MoSi2 mixture with alloying characteristics in a combustion synthesis reaction kettle by a self-propagating high-temperature synthesis method, crushing and drying the ZrB2-MoSi2 mixture, wrapping a non-equilibrium alloyed precursor on the outer side of a carbon matrix needing to prepare the high-oxygen-barrier coating by using a mold, then carrying out spark plasma SPS sintering on the carbon matrix, and finally generating the ZrB2-MoSi2 high-oxygen-barrier coating on the surface of the carbon matrix. The method is simple and practical, the oxidation resistance of the ZrB2-MoSi2 coating can be remarkably improved, oxidation protection on a carbon matrix is improved, and the coating is excellent in comprehensive performance and has wide development prospects.
本发明公开了一种基于ZrB2非平衡态合金化修饰的高阻氧涂层及制备方法，适用于碳材料技术领域使用。以质量分数：5‑30％锆粉，5‑30％钼粉，10‑60％硅粉，10‑60％硼粉混合并制成圆柱坯体，在燃烧合成反应釜内以自蔓延高温合成法制备获得具有合金化特性的非平衡态合金化前驱体ZrB2‑MoSi2的混合体，将ZrB2‑MoSi2混合体破碎干燥，利用模具将非平衡态合金化前驱体包裹在需要制备高阻氧涂层的碳基体外侧，之后对碳基体进行放电等离子SPS烧结，最终在碳基体表面上生成ZrB2‑MoSi2高阻氧涂层。方法简单实用，可以显著提升ZrB2‑MoSi2涂层的抗氧化性能，提升对碳基体的氧化防护，且涂层综合性能优异，具有广阔的发展前景。
ZrB2 non-equilibrium alloying modification-based high oxygen barrier coating and preparation method thereof
一种基于ZrB2非平衡态合金化修饰的高阻氧涂层及制备方法
REN XUANRU (Autor:in) / ZHANG MENGLIN (Autor:in) / FENG PEIZHONG (Autor:in) / YANG QINGQING (Autor:in) / KAN TENGFEI (Autor:in) / CHEN YUEXING (Autor:in) / WU BINBIN (Autor:in) / WANG WEIGUANG (Autor:in) / WANG LEYU (Autor:in)
09.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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