High-temperature-resistant and corrosion-resistant quartz boat and preparation method thereof

By using thermal detonation treatment and adding specific materials, a high-temperature and corrosion-resistant quartz boat was prepared, which solved the problem of limited performance improvement of quartz boats in the existing technology and achieved higher corrosion resistance and high-temperature resistance.

CN118405837BActive Publication Date: 2026-07-24WUXI SHANGLING QUARTZ TECH CO LTD
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Patent Information

Application Number
CN202410579564.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-11
Publication Date
2026-07-24
Estimated Expiration
2044-05-11

AI Technical Summary

Technical Problem

In existing technologies, the improvement of the high temperature and corrosion resistance of quartz boats is limited, and the tendency of nanomaterials to agglomerate affects their strength and performance.

Method used

Gas-liquid inclusions in quartz ore are removed by thermal detonation. Chromium boride, alumina, composite materials, and lanthanum hexaboride-ferric oxide are added. A composite material of aminated diamond and modified silicon nitride is used in combination with lanthanum hexaboride as a catalyst to improve the corrosion resistance and high temperature resistance of the quartz boat.

Benefits of technology

It significantly improves the strength, corrosion resistance, and high-temperature resistance of quartz boats, solves the problem of nanomaterial agglomeration, and enhances thermal conductivity and mechanical properties.

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Abstract

The application relates to the technical field of quartz boat, and particularly discloses a high-temperature-resistant and corrosion-resistant quartz boat and a preparation method thereof. The application comprises the following operation steps: S1: quartz ore is sequentially subjected to heat explosion, drying, grinding, screening, HF acid soaking, magnetic separation, flotation, cleaning and drying treatment to obtain a crude product; the crude product is high-temperature calcined and directly transferred into mixed acid, and then subjected to room-temperature ultrasonic soaking, high-temperature ultrasonic soaking, cleaning, drying, high-temperature chlorination and quartz sand obtaining; S2: (1) the amino diamond and modified silicon nitride are ultrasonically dispersed in N,N-dimethylacetamide, pyromellitic dianhydride is added for reaction, and the composite material is purified and dried; (2) the lanthanum hexaboride and the iron sesquioxide are ball-mixed, and calcined to obtain lanthanum hexaboride-iron sesquioxide; S3: the quartz sand, chromium boride, aluminum oxide, composite material and lanthanum hexaboride-iron sesquioxide are uniformly mixed, sintered, and cooled and formed to obtain the quartz boat.
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