Results 111 to 120 of about 35,130 (246)

Translucency of 3D‐Printed 3Y‐ and 5Y‐Doped Zirconia

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To evaluate and compare the translucency of 3D‐printed zirconia materials: 3Y tetragonal zirconia polycrystal (3Y‐TZP) and 5Y partially stabilized zirconia (5Y‐PSZ). Material and Methods 3D‐printed 5Y‐PSZ and 3Y‐TZP materials fabricated using digital light processing (DLP) were investigated.
Sebastian Hetzler, Clemens Schmitt, Peter Rammelsberg, Stefan Rues, Andreas Zenthöfer   +4 more
wiley   +1 more source

Caracterização estrutural por difração de raios X de alta resolução de SiAlONs sinterizados com diferentes aditivos Structural characterization by high-resolution X-ray diffraction of SiAlONs sintered with different additives

Cerâmica, 2005
A técnica de difração de raios X de alta resolução foi utilizada para a caracterização estrutural da solução sólida, formada a partir de nitreto de silício (Si3N4), denominada alfa-SiAlON.
C. Santos, P. A. Suzuki, K. Strecker, S. Kycia, C. R. M. Silva   +4 more
doaj   +1 more source

Effects of Substructure Color and Restoration Thickness on the Final Color of Ultra‐Translucent Zirconia Ceramics

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This in vitro study aimed to evaluate the effects of substructure color and restoration thickness on the final color of shade‐gradient ultra‐translucent zirconia ceramics. Material and Methods A total of 180 flat‐shaped ultra‐translucent zirconia specimens (5Y‐PSZ) with thicknesses of 0.4, 0.6, and 0.8 mm (n = 60) were fabricated and
Elif Yılmaz Biçer, Merve Bankoğlu Güngör, Cemal Aydın   +2 more
wiley   +1 more source

Sintering Kinetics of Plasma-Sprayed Zirconia TBCs

, 2007
A model of the sintering exhibited by EB-PVD TBCs, based on principles of free energy minimization, was recently published by Hutchinson et al. In the current paper, this approach is applied to sintering of plasma-sprayed TBCs and comparisons are made ...
A. Cipitria, A. Needleman, A.C.F. Cocks, A.C.F. Cocks, A.C.F. Cocks, A.J. Allen, A.M.J. Mayo, B. Sun, F. Parhami, H.H. Yu, I.O. Golosnoy, I.O. Golosnoy, J. Pan, J. Pan, J. Pan, J. Svoboda, J. Svoboda, M. Saitou, M. Saitou, R.G. Hutchinson, S. Brunauer, T.W. Clyne, Y. Sakka, Z. Suo   +23 more
core   +1 more source

Effect of sintering cycle on the strength and translucency of multilayered zirconia

Journal of Prosthodontics, EarlyView.
Abstract Purpose A newly introduced sintering protocol promises to offer higher translucency while not significantly compromising the flexural strength of the material. However, the effect of the novel sintering protocol has not been thoroughly validated.
Kedith Sawangsri, Steven Makowka, Sompop Bencharit, Hyeongil Kim   +3 more
wiley   +1 more source

The effect of toothpaste and thermal aging on extrinsically stained additively manufactured zirconia: A comparative study on surface roughness and stain durability

Journal of Prosthodontics, EarlyView.
Abstract Purpose The purpose of this in vitro study was to compare the average surface roughness (Ra) and stain durability of extrinsically stained additively manufactured zirconia, after brushing with different toothpastes and thermal cycling, with those of subtractively manufactured zirconia and lithium disilicate.
Cecilia Santos Galvao, Ediz Kale, Mustafa Borga Donmez, Özgür Ozan Tanrıkut, Adriana da Fonte Porto Carreiro, Richard Johannes Wierichs, Hanan Al‐Johani, Burak Yilmaz   +7 more
wiley   +1 more source

Shells of crystal field symmetries evidenced in oxide nano-crystals

, 2012
By the use of a point charge model based on the Judd-Ofelt transition theory, the luminescence from Eu3+ ions embedded in Gd2O3 clusters is calculated and compared to the experimental data.
Amans, David, Dujardin, Christophe, Ledoux, Gilles, Masenelli, Bruno, Melinon, Patrice   +4 more
core   +3 more sources

Assessing D‐Squame as a Minimally Invasive Technique to Evaluate the Cutaneous Immune Response mRNA in a Dog Model of Canine Atopic Dermatitis

Veterinary Dermatology, EarlyView.
ABSTRACT Background Canine atopic dermatitis (cAD) is a multifactorial, inherited skin disease, estimated to affect ≤ 15% of dogs. Studies of skin messenger mRNA in cAD currently use invasive methods, including blood sampling and biopsy collection, whilst advances in human atopic dermatitis study methodology have demonstrated reliable use of minimally ...
Xavier Langon, Marion Mosca, Nadège Milhau, Mélanie Legain, Adrien Idée, Didier Pin   +5 more
wiley   +1 more source

Progressively Fenitised Schist and Carbonatitic Clasts From a Metasomatic Aureole Beneath the Alkalic Dunedin Volcano, Otago, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Clasts of albite‐porphyroblastic quartzofeldspathic schist, derived from the Otago Schist basement, occur within the Port Chalmers Breccia, a diatreme at the centre of the Dunedin stratovolcano, New Zealand. Schists have undergone varying degrees of replacement reactions (at temperatures of 300° to >500°C) producing hornfelses, with Ca‐ and K‐enriched ...
Alan F. Cooper
wiley   +1 more source

The Effect of a High Thermal Gradient on Sintering and Stiffening in the Top Coat of a Thermal Barrier Coating (TBC) System

, 2003
Superalloy substrates coated with plasma sprayed CoNiCrAlY bond coats and yttria-stabilized zirconia top coats have been subjected to a high heat flux in a controlled atmosphere chamber.
Clyne, T.W., Golosnoy, I.O., Tsipas, S.A.   +2 more
core