Giant Piezoresistivity In Polymer-Derived Amorphous Sialco Ceramics

Abstract

The piezoresistive behavior of polymer-derived amorphous SiAlCO ceramic is studied in a temperature range of 25–300 °C. It is shown that the material exhibits a giant gage factor of 7000–16,000, much higher than that for any reported high-temperature materials. The result also reveals that the material exhibits a positive temperature-dependent piezoresistive stress coefficient within the temperature range. The unusual piezoresistivity of the material was attributed to the structure of the SiAlCO, which consists of highly disordered graphene-like carbon nanoclusters dispersed within an amorphous matrix comprising of SiCxO4−x tetrahedra. The huge piezoresistivity, together with the processibility and low-cost, make the material very promising for high-temperature sensor applications.

Publication Date

6-1-2016

Publication Title

Journal of Materials Science

Volume

51

Issue

12

Number of Pages

5646-5650

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1007/s10853-016-9866-y

Socpus ID

84960094047 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84960094047

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