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Hafnium oxide fiber, preparation method thereof and application of hafnium oxide fiber in antioxidant coating
The invention relates to a hafnium oxide fiber, a preparation method thereof and an application of the hafnium oxide fiber in an antioxidant coating, and belongs to the technical field of ultrahigh-temperature ceramics. The preparation method comprises the following steps: adding a hafnium source compound and a carrier polymer into a solvent to obtain a precursor solution, carrying out electrostatic spinning on the precursor solution, wherein the solvent volatilizes in the electrostatic spinning process and the hafnium source compound adheres to the long chain of the carrier polymer, so that spinning fibers are formed, and pyrolyzing the spinning fiber at 500-1800 DEG C to obtain the hafnium oxide fiber. The preparation method is simple and easy to operate, and the prepared ultrahigh-temperature ceramic fiber material can be doped in an ultrahigh-temperature ceramic coating to improve the oxidation resistance of the coating, and can further effectively prevent crack propagation and improve the breaking strength of the material.
本发明涉及一种氧化铪纤维及其制备方法与在抗氧化涂层中的应用，属于超高温陶瓷技术领域。制备方法为将铪源化合物和载体聚合物加入到溶剂中，得到先驱体溶液；将先驱体溶液进行静电纺丝，所述溶剂在静电纺丝过程中挥发，所述铪源化合物粘附在所述载体聚合物的长链上，形成纺丝纤维；将纺丝纤维在500℃～1800℃条件下进行热解，得到氧化铪纤维。该制备方法简单易操作，且制备出的超高温陶瓷纤维材料可用于掺杂在超高温陶瓷涂层中提高涂层的抗氧化能力，同时也可进一步有效阻止裂纹扩展，提高材料的断裂强度。
Hafnium oxide fiber, preparation method thereof and application of hafnium oxide fiber in antioxidant coating
The invention relates to a hafnium oxide fiber, a preparation method thereof and an application of the hafnium oxide fiber in an antioxidant coating, and belongs to the technical field of ultrahigh-temperature ceramics. The preparation method comprises the following steps: adding a hafnium source compound and a carrier polymer into a solvent to obtain a precursor solution, carrying out electrostatic spinning on the precursor solution, wherein the solvent volatilizes in the electrostatic spinning process and the hafnium source compound adheres to the long chain of the carrier polymer, so that spinning fibers are formed, and pyrolyzing the spinning fiber at 500-1800 DEG C to obtain the hafnium oxide fiber. The preparation method is simple and easy to operate, and the prepared ultrahigh-temperature ceramic fiber material can be doped in an ultrahigh-temperature ceramic coating to improve the oxidation resistance of the coating, and can further effectively prevent crack propagation and improve the breaking strength of the material.
本发明涉及一种氧化铪纤维及其制备方法与在抗氧化涂层中的应用，属于超高温陶瓷技术领域。制备方法为将铪源化合物和载体聚合物加入到溶剂中，得到先驱体溶液；将先驱体溶液进行静电纺丝，所述溶剂在静电纺丝过程中挥发，所述铪源化合物粘附在所述载体聚合物的长链上，形成纺丝纤维；将纺丝纤维在500℃～1800℃条件下进行热解，得到氧化铪纤维。该制备方法简单易操作，且制备出的超高温陶瓷纤维材料可用于掺杂在超高温陶瓷涂层中提高涂层的抗氧化能力，同时也可进一步有效阻止裂纹扩展，提高材料的断裂强度。
Hafnium oxide fiber, preparation method thereof and application of hafnium oxide fiber in antioxidant coating
一种氧化铪纤维及其制备方法与在抗氧化涂层中的应用
CHEN SHI (author) / XU JIANBO (author) / QIU XINCHAO (author) / ZHANG BOWEN (author) / LYU SHUYUAN (author) / YANG XIAOFEI (author) / ZHU BENPENG (author) / ZHANG YUE (author) / OUYANG JUN (author)
2020-12-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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