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Hydrothermal-corrosion-resistant silicon carbide ceramic connector coated with yttrium aluminum garnet layer as well as preparation method and application of hydrothermal-corrosion-resistant silicon carbide ceramic connector
The invention belongs to the technical field of ceramic welding, and discloses a hydrothermal-corrosion-resistant silicon carbide ceramic connecting piece coated with an yttrium aluminum garnet layer and a preparation method and application of the hydrothermal-corrosion-resistant silicon carbide ceramic connecting piece. The connecting piece is formed by connecting two silicon carbide ceramic matrixes through a silicon carbide-based ceramic middle layer; the side face of the silicon carbide ceramic connecting piece is coated with yttrium aluminum garnet powder to form a yttrium aluminum garnet layer, the silicon carbide-based ceramic middle layer takes silicon carbide powder, aluminum oxide powder, yttrium oxide powder, gadolinium oxide powder and zirconium oxide powder as raw materials of a connecting layer, and the silicon carbide-based ceramic middle layer is coated between the two silicon carbide ceramic substrates after being evenly mixed; the material is prepared through hot pressed sintering or spark plasma sintering. The coating material is coated on the side surface of the silicon carbide ceramic connecting piece, and is subjected to heat treatment at 1400-1550 DEG C in a protective atmosphere to obtain the silicon carbide ceramic connecting piece. The silicon carbide ceramic connecting piece coated with the yttrium aluminum garnet layer has high connecting strength and excellent hydrothermal corrosion resistance, and is applied to the fields of nuclear energy and the like.
本发明属于陶瓷焊接技术领域，公开了一种耐水热腐蚀的涂覆钇铝石榴石层的碳化硅陶瓷连接件及其制备方法和应用。该连接件是由两个碳化硅陶瓷基体通过碳化硅基陶瓷中间层连接形成；在碳化硅陶瓷连接件的侧面涂覆钇铝石榴石粉体形成钇铝石榴石层，碳化硅基陶瓷中间层以碳化硅粉体、氧化铝粉体、氧化钇粉体、氧化钆粉体和氧化锆粉体为连接层原材料，均匀混合后涂覆于两个碳化硅陶瓷基体之间，通过热压烧结或放电等离子烧结制得；将涂覆材料涂覆在碳化硅陶瓷连接件的侧面，保护气氛气氛下，在1400～1550℃热处理得到。本发明涂覆钇铝石榴石层的碳化硅陶瓷连接件具有较高的连接强度，同时具有出色的耐水热腐蚀性能，在核能等领域应用。
Hydrothermal-corrosion-resistant silicon carbide ceramic connector coated with yttrium aluminum garnet layer as well as preparation method and application of hydrothermal-corrosion-resistant silicon carbide ceramic connector
The invention belongs to the technical field of ceramic welding, and discloses a hydrothermal-corrosion-resistant silicon carbide ceramic connecting piece coated with an yttrium aluminum garnet layer and a preparation method and application of the hydrothermal-corrosion-resistant silicon carbide ceramic connecting piece. The connecting piece is formed by connecting two silicon carbide ceramic matrixes through a silicon carbide-based ceramic middle layer; the side face of the silicon carbide ceramic connecting piece is coated with yttrium aluminum garnet powder to form a yttrium aluminum garnet layer, the silicon carbide-based ceramic middle layer takes silicon carbide powder, aluminum oxide powder, yttrium oxide powder, gadolinium oxide powder and zirconium oxide powder as raw materials of a connecting layer, and the silicon carbide-based ceramic middle layer is coated between the two silicon carbide ceramic substrates after being evenly mixed; the material is prepared through hot pressed sintering or spark plasma sintering. The coating material is coated on the side surface of the silicon carbide ceramic connecting piece, and is subjected to heat treatment at 1400-1550 DEG C in a protective atmosphere to obtain the silicon carbide ceramic connecting piece. The silicon carbide ceramic connecting piece coated with the yttrium aluminum garnet layer has high connecting strength and excellent hydrothermal corrosion resistance, and is applied to the fields of nuclear energy and the like.
本发明属于陶瓷焊接技术领域，公开了一种耐水热腐蚀的涂覆钇铝石榴石层的碳化硅陶瓷连接件及其制备方法和应用。该连接件是由两个碳化硅陶瓷基体通过碳化硅基陶瓷中间层连接形成；在碳化硅陶瓷连接件的侧面涂覆钇铝石榴石粉体形成钇铝石榴石层，碳化硅基陶瓷中间层以碳化硅粉体、氧化铝粉体、氧化钇粉体、氧化钆粉体和氧化锆粉体为连接层原材料，均匀混合后涂覆于两个碳化硅陶瓷基体之间，通过热压烧结或放电等离子烧结制得；将涂覆材料涂覆在碳化硅陶瓷连接件的侧面，保护气氛气氛下，在1400～1550℃热处理得到。本发明涂覆钇铝石榴石层的碳化硅陶瓷连接件具有较高的连接强度，同时具有出色的耐水热腐蚀性能，在核能等领域应用。
Hydrothermal-corrosion-resistant silicon carbide ceramic connector coated with yttrium aluminum garnet layer as well as preparation method and application of hydrothermal-corrosion-resistant silicon carbide ceramic connector
一种耐水热腐蚀的涂覆钇铝石榴石层的碳化硅陶瓷连接件及其制备方法和应用
GUO WEIMING (author) / ZHAN CHUANGTIAN (author) / HE SHENGJIN (author) / LIN HUATAI (author)
2024-04-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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