Next Article in Journal
From Evaporative to Cooling Crystallisation: An Initial Co-Crystallisation Study of Cytosine and Its Fluorinated Derivative with 4-chloro-3,5-dinitrobenzoic Acid
Next Article in Special Issue
Orientation and Temperature Dependence of Piezoelectric Properties for Sillenite-Type Bi12TiO20 and Bi12SiO20 Single Crystals
Previous Article in Journal
Structures and Magnetic Properties of Iron(III) Complexes with Long Alkyl Chains
Open AccessArticle

Tetragonal-to-Tetragonal Phase Transition in Lead-Free (KxNa1−x)NbO3 (x = 0.11 and 0.17) Crystals

1
Laboratory of Thin Film Techniques and Optical Test, Xi'an Technological University, Xi'an 710032, Shaanxi, China
2
Electronic Materials Research Laboratory, Key Laboratory of Education Ministry/International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
3
Materials Research Institute, the Pennsylvania State University, University Park, PA 16802, USA
*
Authors to whom correspondence should be addressed.
Crystals 2014, 4(2), 113-122; https://doi.org/10.3390/cryst4020113
Received: 13 April 2014 / Revised: 16 May 2014 / Accepted: 16 May 2014 / Published: 10 June 2014
(This article belongs to the Special Issue Piezoelectric Crystals)
Lead free piezoelectric crystals of (KxNa1−x)NbO3 (x = 0.11 and 0.17) have been grown by the modified Bridgman method. The structure and chemical composition of the obtained crystals were determined by X-ray diffraction (XRD) and electron probe microanalysis (EPMA). The domain structure evolution with increasing temperature for (KxNa1−x)NbO3 (x = 0.11 and 0.17) crystals was observed using polarized light microscopy (PLM), where distinguished changes of the domain structures were found to occur at 400 °C and 412 °C respectively, corresponding to the tetragonal to tetragonal phase transition temperatures. Dielectric measurements performed on (K0.11Na0.89)NbO3 crystals exhibited tetragonal to tetragonal and tetragonal to cubic phase transitions temperatures at 405 °C and 496 °C, respectively. View Full-Text
Keywords: lead free piezoelectric crystal; phase transitions; domain structure lead free piezoelectric crystal; phase transitions; domain structure
Show Figures

Figure 1

MDPI and ACS Style

Lin, D.; Li, Z.; Li, F.; Cai, C.; Liu, W.; Zhang, S. Tetragonal-to-Tetragonal Phase Transition in Lead-Free (KxNa1−x)NbO3 (x = 0.11 and 0.17) Crystals. Crystals 2014, 4, 113-122.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Search more from Scilit
 
Search
Back to TopTop