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Ceramics 2019, 2(2), 298-307; https://doi.org/10.3390/ceramics2020025

Process Technology, Applications and Thermal Resistivity of Basalt Fiber Reinforced SiOC Composites

Institute for Manufacturing Technologies of Ceramic Components and Composites, University Stuttgart, Allmandring 7b, D-70569 Stuttgart, Germany
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Received: 18 March 2019 / Revised: 4 April 2019 / Accepted: 15 April 2019 / Published: 17 April 2019
(This article belongs to the Special Issue Damage and Lifetime of Ceramic Matrix Composites)
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Abstract

Promising lightweight composite materials, bridging the gap between Polymer and Ceramic Matrix Composites, are manufactured as polymer derived ceramics by the use of polysiloxanes and basalt fibers. Such competitive free formable Hybrid Composites are supposed to be capable for lightweight applications in a temperature range between 300 °C and 850 °C and short time exposure up to over 1000 °C, even in oxidative atmosphere. Cheap raw materials like basalt fibers and siloxane resins in combination with performing manufacturing technologies can establish completely new markets for intermediate temperature composites. These attributes enable the Hybrid Composites as ideal material for fire retardant applications in automotive engineering and public transportation, as well as in fire protection systems in electrical and civil engineering applications. In this study, the most prominent fields of application and engineering solutions for Hybrid-CMC are reviewed and the results of the thermal resistivity analysis effectuated on basalt fiber reinforced SiOC samples are presented. This study consisted of several air exposures between 1 h and 50 h and temperatures in the range of 650 °C to 1100 °C. Remaining mechanical resistance was characterized by Impulse Excitation Technique (IET) and Interlaminar Shear Strength (ILSS) tests. Basalt fiber reinforced samples exhibited a decent level of mechanical performance even after the most demanding exposures. Due to the poor oxidation resistance of carbon fibers, Cf/SiOC composites were completely degraded after long-term exposure at 500 °C in air.
Keywords: Hybrid Composites; CMC; Basalt fiber; SiOC; fire retardant applications; lightweight Hybrid Composites; CMC; Basalt fiber; SiOC; fire retardant applications; lightweight
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Gadow, R.; Weichand, P.; Jiménez, M. Process Technology, Applications and Thermal Resistivity of Basalt Fiber Reinforced SiOC Composites. Ceramics 2019, 2, 298-307.

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