Charge carrier relaxation and phase transition in scandium stabilized zirconia ceramics

2014 ◽  
Vol 134 ◽  
pp. 176-181 ◽  
Author(s):  
Saulius Kazlauskas ◽  
Algimantas Kežionis ◽  
Edvardas Kazakevičius ◽  
Antanas Feliksas Orliukas
Keyword(s):  
Phase Transition ◽  
Charge Carrier ◽  
Stabilized Zirconia ◽  
Zirconia Ceramics ◽  
Carrier Relaxation

Charge carrier relaxation phenomena and phase transition in La 2 Mo 2 O 9 ceramics investigated by broadband impedance spectroscopy

2016 ◽  
Vol 213 ◽  
pp. 306-313 ◽  
Author(s):  
Algimantas Kežionis ◽  
Dalius Petrulionis ◽  
Edvardas Kazakevičius ◽  
Saulius Kazlauskas ◽  
Artūras Žalga ◽  
...  
Keyword(s):  
Phase Transition ◽  
Impedance Spectroscopy ◽  
Charge Carrier ◽  
Relaxation Phenomena ◽  
Carrier Relaxation

Preparation and Electrical Property of Calcia Stabilized Zirconia Ceramics

2014 ◽  
Vol 616 ◽  
pp. 157-165 ◽  
Author(s):  
Chang Lian Chen ◽  
Hong Quan Wang ◽  
Jia You Ji ◽  
Ma Ya Luo ◽  
Bo Wu ◽  
...  
Keyword(s):  
Grain Size ◽  
Electrical Property ◽  
Arrhenius Equation ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Cubic Phase ◽  
Pressureless Sintering ◽  
Stabilized Zirconia ◽  
Zirconia Ceramics ◽  
Sintering Method

In this paper, using ZrO2 and Ca (NO3)•4H2O as raw materials, we prepared a series of calica stabilized zirconia (CSZ) ceramics by pressureless sintering method. The results show that the relative densities of all sintered samples are above 90%, and the sintered samples are composed of cubic, tetragonal and monoclinic ZrO2, and the main phase is cubic ZrO2 and tetragonal ZrO2. The content of cubic phase increases with the increase of sintering temperature and adding CaO content. The grain size of the sintered samples is relatively uniform and some pores exist. Increasing the additive amount of CaO, the conductivity first rises and then decreases, and the conductivity value of the sample containing 5wt% CaO is the maximum. When the sintering temperature is up to 1600 oC, the conductivity of the sample containing 5wt% CaO is up to 0.016S•cm-1 at 800 oC. Furthermore, the conductivity of sintered samples is increasing with the increase of test temperature according to the Arrhenius equation.

Roughness and its effects on flexural strength of dental yttria-stabilized zirconia ceramics

2019 ◽  
Vol 739 ◽  
pp. 149-157 ◽  
Author(s):  
José Eduardo Vasconcellos Amarante ◽  
Marcos Venícius Soares Pereira ◽  
Grace Mendonça de Souza ◽  
Manuel Fellipe R. Pais Alves ◽  
Bruno Galvão Simba ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Yttria Stabilized Zirconia ◽  
Stabilized Zirconia ◽  
Zirconia Ceramics

scholarly journals Change of phase compositions in calcia stabilized zirconia ceramics using a boric acid additive

2009 ◽  
Vol 117 (1364) ◽  
pp. 449-451
Author(s):  
Qiang SHEN ◽  
Changlian CHEN ◽  
Fei CHEN ◽  
Junguo LI ◽  
Lianmeng ZHANG
Keyword(s):  
Boric Acid ◽  
Stabilized Zirconia ◽  
Zirconia Ceramics

scholarly journals Mg/W-codoped vanadium dioxide thin films with enhanced visible transmittance and low phase transition temperature

2015 ◽  
Vol 3 (26) ◽  
pp. 6771-6777 ◽  
Author(s):  
Ning Wang ◽  
Shiyu Liu ◽  
X. T. Zeng ◽  
Shlomo Magdassi ◽  
Yi Long
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Transition Temperature ◽  
Charge Carrier ◽  
Band Gap ◽  
Phase Transition Temperature ◽  
Vanadium Dioxide ◽  
Visible Transmittance ◽  
Vanadium Dioxide Thin Films

Mg2+ and W6+ cations were first codoped into the VO2 lattice, resulting in a widened photon band gap and h+/e− charge carrier accumulation. These effects enhanced the thermochromic performance with a high visible transmission (∼80%) and a low phase transition temperature (∼30 °C).

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