Results 51 to 60 of about 22,025 (237)

Surface microstructural changes of spark plasma sintered zirconia after grinding and annealing [PDF]

open access: yes, 2016
Spark plasma sintered zirconia (3Y-TZP) specimens have been produced of 140 nm 372 nm and 753 nm grain sizes by sintering at 1250 °C, 1450 °C and 1600 °C, respectively.
Akhtar, Farid   +5 more
core   +2 more sources

Chlorination of Ball-milled Zirconia

open access: yesJournal of Advanced Materials in Engineering, 2009
The effects of mechanochemical treatment of monoclinic zirconia in high energy planetary ball mill on its phase transformation were investigated. The mechanical treatment in ball mill reduces the grain size, increases microstrain, and causes phase ...
M. Kasiri Asgarani   +2 more
doaj  

Effect of Crystalline Size on the Structure of Copper Doped Zirconia Nanopaticles Synthesized via Sol-Gel [PDF]

open access: yesJournal of Nanostructures, 2012
The stabilized zirconia with different Cu contents synthesized via sol- gel method. The samples were prepared by hydrolysis and condensation of orgnomatelic sol. After that the result gels were dried at 80 °C and then calcined at various temperatures. 
S. Asadi, H. Abdizadeh, Y. Vahidshad
doaj   +1 more source

Optical coherence tomography systems for evaluation of marginal and internal fit of ceramic reconstructions

open access: yesBiomaterial Investigations in Dentistry, 2022
Purpose To evaluate the marginal and internal fit of lithium disilicate and zirconia crowns using two optical coherence tomography (OCT) systems in order to estimate inter-system variations.Materials and methods Ten lithium disilicate and 10 cubic ...
Hiba Al-Imam   +3 more
doaj   +1 more source

n-Heptane hydroconversion over sulfated-zirconia-supported molybdenum carbide catalysts [PDF]

open access: yes, 2016
Tertiary Education Trust Fund (TETFUND) NigeriaPeer reviewedPublisher ...
Anderson, J. A.   +2 more
core   +2 more sources

Characterization of ageing resistant transparent nanocrystalline yttria-stabilized zirconia implants. [PDF]

open access: yes, 2020
The "Window to the Brain" is a transparent cranial implant under development, based on nanocrystalline yttria-stabilized zirconia (nc-YSZ) transparent ceramic material.
Aguilar, Guillermo   +6 more
core   +1 more source

Phase diagrams of zirconium dioxide systems with yttrium and scandium oxides

open access: yesКонденсированные среды и межфазные границы, 2023
The literature data on the study of phase equilibria in systems zirconia with yttria and scandia are analysed. Possible schemes of low-temperature phase equilibria in ZrO2-Y2O3 and ZrO2-Sc2O3 systems are presented taking into account the third law of ...
Pavel P. Fedorov, Elena V. Chernova
doaj   +1 more source

Determination of oxygen vacancy limit in Mn substituted YSZ ceramics

open access: yes, 2017
The series of Mnx(Y0.148Zr0.852)1-xO2-{\delta} ceramics was systematically studied by means of X-ray absorption and emission spectroscopy and DC magnetic susceptibility.
Bućko, Mirosław M.   +4 more
core   +1 more source

Electrochemical blackening of yttria-stabilized zirconia : morphological instability of the moving reaction front [PDF]

open access: yes, 1999
Electrochemical reduction was performed on both polycrystals of calcia-stabilized zirconia (CSY) and single crystals of yttria-stabilized zirconia (YSZ) at 500°C. A glass-encapsulation was used to prevent access of molecular oxygen from the gas phase and
Janek, Jürgen, Korte, Carsten
core   +1 more source

Nanoparticles of transition metals oxides with application potential [PDF]

open access: yes, 2009
Tato práce se zabývá nejvíce používanými metodami přípravy a fyzikálními vlastnostmi nanočástic přechodných kovů. Fyzikální vlastnosti nanočástic mohou být kontrolovány pomocí velikosti a tvaru částic.
Burianová, Simona
core   +1 more source

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