Fabrication of Ferroelectric Glass Ceramics from (K0.5Na0.5)NbO3-SiO2-Al2O3Glass System

Yongsiri, Ploypailin; Eitssayeam, Sukum; Inthata, Uraiwan; Rujijanagul, Gobwute; Sirisoonthorn, Somnuk; Tunkasiri, Tawee; Pengpat, Kamonpan

doi:10.1080/00150193.2011.577990

Cited by 5 publications

(5 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To prepare the KNN glass ceramics, many past research projects have used less than 30 mol% of SiO 2 because it produces a suitable ratio to exhibit transparent regions, therefore, 25 mol% SiO 2 was chosen to prepare the glass in this work according to Yongsiri et al [9] However, it has also been reported that the KNN glass with a low content of SiO 2 possessed low mechanical strength.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of transparent lead-free KNN glass ceramics by incorporation method

et al. 2012

Self Cite

View full text Add to dashboard Cite

The incorporation method was employed to produce potassium sodium niobate [KNN] (K0.5Na0.5NbO3) glass ceramics from the KNN-SiO2 system. This incorporation method combines a simple mixed-oxide technique for producing KNN powder and a conventional melt-quenching technique to form the resulting glass. KNN was calcined at 800°C and subsequently mixed with SiO2 in the KNN:SiO2 ratio of 75:25 (mol%). The successfully produced optically transparent glass was then subjected to a heat treatment schedule at temperatures ranging from 525°C -575°C for crystallization. All glass ceramics of more than 40% transmittance crystallized into KNN nanocrystals that were rectangular in shape and dispersed well throughout the glass matrix. The crystal size and crystallinity were found to increase with increasing heat treatment temperature, which in turn plays an important role in controlling the properties of the glass ceramics, including physical, optical, and dielectric properties. The transparency of the glass samples decreased with increasing crystal size. The maximum room temperature dielectric constant (εr) was as high as 474 at 10 kHz with an acceptable low loss (tanδ) around 0.02 at 10 kHz.

show abstract

Section: Resultsmentioning

confidence: 99%

Fabrication of transparent lead-free KNN glass ceramics by incorporation method

et al. 2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…The influence of CeO2 as a nucleation agent in borosilicate glasses containing KNN have been reported for energy storage capacitor application by Hanyu et al [93]. On the basis of their results, Yongsiri et al [54] suggested that KNN glass-ceramics could be favourable for use in electro-optical applications. The microstructure, crystallite sizes, and crystal quantity of the KNN glass-ceramics were studied as a function of the heat treatment conditions.…”

Section: Potassium Sodium Niobate Systemsmentioning

confidence: 98%

“…The significance of glass-ceramics in many applications lies in the possibility of utilizing key properties such as transparency, strength, resistance to abrasion, and the controlled coefficient of thermal expansion. All these properties can be manipulated by the controlling the composition, extent of crystallisation, crystal morphology, crystal size, and aspect ratio of the materials [54]. Glass-ceramics are used in a range of applications across different fields such as telecommunication, radar, and navigation.…”

Section: Schematic Of Glass Processing In the Formation Of A Glass Cementioning

confidence: 99%

“…Kioka et al [96] and Kongputhon et al [97] studied the control of the crystallisation behaviour in KNN-SiO2, by varying the K:Na ratio, as a means of modifying the dielectric properties. Alumina-silicate glasses have also been used to fabricate glass-ceramics containing ferroelectric KNN and their dielectric properties reported by Yongsiri et al [54]. The influence of CeO2 as a nucleation agent in borosilicate glasses containing KNN have been reported for energy storage capacitor application by Hanyu et al [93].…”

Section: Potassium Sodium Niobate Systemsmentioning

confidence: 99%

“…XRD patterns of the glass-ceramic sample with 5 mol% alumina and 23.75 mol% SiO2 subjected to different heat treatment temperatures[54].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Ferroelectric Glass-Ceramic Systems for Energy Storage Applications

Khalf¹

2021

Advanced Ceramic Materials

View full text Add to dashboard Cite

An overview of ferroelectric glass ceramics, some literature review and some of the important previous studies were focused in this chapter. Nanocrystalline glass–ceramics containing ferroelectric perovskite-structured phases have been included. All modified glasses having ferroelectric ceramics which prepared by different methods are discussed, that producing nanocrystalline glass–ceramics. Then particular tested to their use as dielectric energy storage materials. These materials exhibit promising dielectric properties, indicating good potential for high energy density capacitors as a result of their nanocrystalline microstructures. The results of the analysis are summarised in this chapter to provide an overview of the energy storage characteristics of the different materials produced during the study.

show abstract