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SiBN fiber containing Si2N2O microcrystalline in-situ coating as well as preparation method and application of SiBN fiber
The invention discloses a SiBN fiber containing a Si2N2O microcrystalline in-situ coating and a preparation method and application thereof.The method is based on the element composition characteristics of SiBN fibril and aims at forming the high-temperature-oxidation-resistant Si2N2O microcrystalline coating in situ, firstly, oxygen elements are introduced to the surface of the SiBN fibril in a high-temperature oxidation treatment mode, a boiling water dipping treatment mode and other treatment modes, and then the SiBN fibril is prepared into the Si2N2O microcrystalline in-situ coating. And converting an oxygen-containing component on the surface layer of the fiber into Si2N2O microcrystals under a high-temperature inert condition by utilizing a high-temperature sintering effect of an inherent boron element of the SiBN fibril, so as to obtain the SiBN fiber containing the Si2N2O microcrystal in-situ coating. After the Si2N2O microcrystalline in-situ coating is formed in situ, the mechanical strength of the SiBN fiber is not greatly changed, but the high-temperature oxidation resistance is remarkably improved, so that the SiBN fiber is particularly suitable for enhancing the antenna housing of a high-speed aircraft used in an extreme oxidation environment.
本发明公开一种含Si2N2O微晶原位涂层的SiBN纤维及其制备方法、应用，该方法基于SiBN原纤维的元素组成特点，以原位形成抗高温氧化的Si2N2O微晶涂层为目的，首先利用高温氧化和沸水浸渍等处理方式，在SiBN原纤维表面引入氧元素，然后利用SiBN原纤维固有硼元素的高温烧结作用，在高温惰性条件下将纤维表层含氧组分转化为Si2N2O微晶，获得含Si2N2O微晶原位涂层的SiBN纤维。原位形成Si2N2O微晶原位涂层后，SiBN纤维的力学强度变化不大，但抗高温氧化性能有显著提升，特别适合增强极端氧化环境使用的高速飞行器天线罩。
SiBN fiber containing Si2N2O microcrystalline in-situ coating as well as preparation method and application of SiBN fiber
The invention discloses a SiBN fiber containing a Si2N2O microcrystalline in-situ coating and a preparation method and application thereof.The method is based on the element composition characteristics of SiBN fibril and aims at forming the high-temperature-oxidation-resistant Si2N2O microcrystalline coating in situ, firstly, oxygen elements are introduced to the surface of the SiBN fibril in a high-temperature oxidation treatment mode, a boiling water dipping treatment mode and other treatment modes, and then the SiBN fibril is prepared into the Si2N2O microcrystalline in-situ coating. And converting an oxygen-containing component on the surface layer of the fiber into Si2N2O microcrystals under a high-temperature inert condition by utilizing a high-temperature sintering effect of an inherent boron element of the SiBN fibril, so as to obtain the SiBN fiber containing the Si2N2O microcrystal in-situ coating. After the Si2N2O microcrystalline in-situ coating is formed in situ, the mechanical strength of the SiBN fiber is not greatly changed, but the high-temperature oxidation resistance is remarkably improved, so that the SiBN fiber is particularly suitable for enhancing the antenna housing of a high-speed aircraft used in an extreme oxidation environment.
本发明公开一种含Si2N2O微晶原位涂层的SiBN纤维及其制备方法、应用，该方法基于SiBN原纤维的元素组成特点，以原位形成抗高温氧化的Si2N2O微晶涂层为目的，首先利用高温氧化和沸水浸渍等处理方式，在SiBN原纤维表面引入氧元素，然后利用SiBN原纤维固有硼元素的高温烧结作用，在高温惰性条件下将纤维表层含氧组分转化为Si2N2O微晶，获得含Si2N2O微晶原位涂层的SiBN纤维。原位形成Si2N2O微晶原位涂层后，SiBN纤维的力学强度变化不大，但抗高温氧化性能有显著提升，特别适合增强极端氧化环境使用的高速飞行器天线罩。
SiBN fiber containing Si2N2O microcrystalline in-situ coating as well as preparation method and application of SiBN fiber
一种含Si2N2O微晶原位涂层的SiBN纤维及其制备方法、应用
LONG XIN (Autor:in) / SHAO CHANGWEI (Autor:in) / WANG BING (Autor:in) / WANG YINGDE (Autor:in) / WANG XIAOZHOU (Autor:in) / GOU YANZI (Autor:in) / HAN CHENG (Autor:in) / ZHANG XIAOSHAN (Autor:in)
09.09.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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