Evidence of induced structural and conduction anisotropy in scandia-stabilized zirconia ceramics

2012 ◽  
Vol 209 (4) ◽  
pp. 727-729 ◽  
Author(s):  
Vladimir Barbashov ◽  
Elizaveta Nesova ◽  
Natalia Pismenova ◽  
Olga Radionova
Keyword(s):  
Stabilized Zirconia ◽  
Zirconia Ceramics ◽  
Conduction Anisotropy

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

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

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

Mechanical and Structural Properties of Ion Implanted Yttria Stabiizeed Zirconia Ceramics

1983 ◽  
Vol 24 ◽  
Author(s):  
J. K. Cochran ◽  
K. O. Legg ◽  
H. F. Solnick-Legg
Keyword(s):  
Fracture Toughness ◽  
Penetration Depth ◽  
Yttria Stabilized Zirconia ◽  
Stabilized Zirconia ◽  
Zirconia Ceramics ◽  
Mechanical And Structural Properties ◽  
Knoop Microhardness ◽  
Vicker’S Microhardness ◽  
Reflection Electron Diffraction ◽  
Indenter Penetration

ABSTRACTSingle crystal yttria stabilized zirconia was implanted with 100 keV Ca+, Al+, and O2+ ions at fluences of 1015 to 6 × 1016 ions/cm2; . Blistering was observed at doses of 3 × 1016; O2;+ cm−2; and 6 × 1016; Al+ cm−2; but none was evident with Ca+. Knoop microhardness with a shallow indenter penetration depth peaked at a dose of 1016; ions/cm−2; for both Al+ and O2;+ but Ca+ produced no effect on microhardness. Vicker's microhardness with a much greater indenter penetration depth was not changed detectably by implantation but fracture toughness measurements from the same Vicker's indentations exhibited 10–23% increases at the highest O2+ doses and 20–25% increases at high Al+ doses. Annealing the highest implant doses at 1200° reduced the fracture toughness to pre-implant levels. Reflection electron diffraction showed that the surface had not been made amorphous by the 6 × 1016; Al+ dose as a well crystallized diffraction pattern was obtained.

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