Acceptor doping effects in (K0.5Na0.5)NbO3 lead-free piezoelectric ceramics
Source abstract
Abstract
Abstract In this paper, the effects of acceptor dopants on the synthesis, sintering and properties of KNN ceramics were studied for (K 0.5 Na 0.5 )(Nb 0.994 A 0.006 )O 3− δ (A=Ge 4+ , Ga 3+ , Zn 2+ , Mn 2+ , Ni 2+ , and Cu 2+ ) ceramics. The results reveal that the eutectic phase(s) is (are) formed between the acceptor oxide and alkali metal carbonate, thereby significantly improving the sinterability of the materials. Compared to the trivalent and tetravalent acceptor dopants, divalent dopant can lead to higher Q m values, most likely due to the formation of defect complexes.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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