Working Paper Article Version 1 This version is not peer-reviewed

Effect of B Incorporation on the SiOC Precursor Fabrication and High-temperature Oxidation Behavior of SiBOC Ceramics

Version 1 : Received: 28 June 2021 / Approved: 30 June 2021 / Online: 30 June 2021 (09:40:52 CEST)

How to cite: Sun, Z.; Xu, H.; Yuan, F.; Zhou, S.; Zhou, H.; Han, W. Effect of B Incorporation on the SiOC Precursor Fabrication and High-temperature Oxidation Behavior of SiBOC Ceramics. Preprints 2021, 2021060723 Sun, Z.; Xu, H.; Yuan, F.; Zhou, S.; Zhou, H.; Han, W. Effect of B Incorporation on the SiOC Precursor Fabrication and High-temperature Oxidation Behavior of SiBOC Ceramics. Preprints 2021, 2021060723

Abstract

The SiBOC precursor ceramics were fabricated by polymer-derived method SiBOC precursors with different B/Si molar ratios were synthesized by controlling monomer content. The effects of different process conditions on SiBOC ceramics and the oxidation resistance of SiBOC ceramics at a high temperature (1400 ℃) were studied. The SiBOC precursor’s bonds of Si-O-C, Si-O-Si, and Si-O-B were detected by FTIR. The precursor is converted to a rigid ceramic material that has an 85.3 wt % ceramic yield of SiBOC ceramics with B/Si=0.4 by TG-DSC. The results of SEM analysis show that the SiBOC ceramics surface bulges and folds increase with the increase of boric acid content. With the increase of pyrolysis temperature and pyrolysis time, the size and number of pores on the surface of SiBOC ceramics also increase. Static oxidation tests show that SiBOC ceramics with B/Si=0.4 have better oxidation resistance under other conditions being the same.

Subject Areas

polymer-derived ceramics; SiBOC ceramics; sol-gel method; oxidation resistance

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.