Results 71 to 80 of about 7,037 (191)

Synthesis and red emitting properties of NaAlP2O7:Pr3+ polycrystal for blue chip-excited WLEDS

Results in Physics, 2019
A series of NaAlP2O7:xPr3+ (x = 1, 3, 5, 7, 9, 11, 13%) polycrystals have been prepared using the high temperature solid-state reaction method in air atmosphere.
Jing Zhu, Jiyun Xiang, Liangxiong Hu, Yong Mao, Kai Xiong, Heyun Zhao   +5 more
doaj   +1 more source

Effect of Glazing Dwell Time and Cooling Duration on Flexural Strength and Surface Microhardness of 3 mol% Yttria‐Stabilized Tetragonal Zirconia: An In Vitro Study

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the effect of glazing dwell time and cooling duration on the flexural strength and surface microhardness of high‐translucency 3 mol% yttria‐stabilized tetragonal zirconia polycrystal (3Y‐TZP). Materials and Methods Total of 108 rectangular zirconia specimens (20 × 4 × 2 mm) were fabricated from preshaded monolithic blocks
Shubha Sarmalkar, Aradhana Nagarsekar, Meena A. Aras, Umesh Y. Pai, Ridhima Gaunkar, Prajakta R. Volvaikar   +5 more
wiley   +1 more source

Microvoids Enhance the Low-Cycle Fatigue Resistance of TiAl Alloys

Crystals
Voids have a crucial effect on the fatigue performance of materials. The general viewpoint is that voids, as possible sources of cracks, are harmful to the fatigue performance of materials.
Hailiang Jin, Wenya Peng, Chunling Zhao, Zhilai Chen, Hao Ding, Wei Li, Junyan Zhou   +6 more
doaj   +1 more source

Crystal plasticity FE simulation for kink band formation in Mg-based LPSO phase using dislocation-based higher-order stress model

Mechanical Engineering Journal, 2020
The dislocation-based crystal plasticity model considering higher-order stress has been constructed and a finite element (FE) analysis is conducted for both a single crystal and polycrystal with a long-period stacking ordered (LPSO) phase on the basis of
Yuichi KIMURA, Ryo UETA, Kazuyuki SHIZAWA   +2 more
doaj   +1 more source

Long‐Term Clinical and Radiographic Outcomes of Ceramic Dental Implants: An 11‐Year Retrospective Cohort Study

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective Evidence on zirconia dental implants remains limited. This retrospective study evaluated clinical and radiographic outcomes of contemporary ceramic implant systems placed in private practice with variable follow‐up of up to 11 years.
Mona Monzavi, Medis Masnavi, Ayman Zraiqat, Al Manesh   +3 more
wiley   +1 more source

Grain refinement and partitioning of impurities in the grain boundaries of a colloidal polycrystal

, 2012
We study the crystallization of a colloidal model system in presence of secondary nanoparticles acting as impurities. Using confocal microscopy, we show that the nanoparticles segregate in the grain boundaries of the colloidal polycrystal. We demonstrate
Oberdisse, Julian, Tamborini, Elisa, Cipelletti, Luca, Ghofraniha, Neda, Ramos, Laurence   +4 more
core   +1 more source

Long‐Term Esthetic‐Functional Rehabilitation of Unilateral Cleft Lip and Palate With a Cross‐Arch Monolithic Zirconia Fixed Dental Prosthesis Following Multidisciplinary Treatment: 5‐Year Post‐Prosthetic Follow‐Up

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This case report describes the esthetic‐functional rehabilitation of a patient with unilateral complete cleft lip and palate who was managed multidisciplinarily from 10 to 18 years of age, and reports the clinical outcome 5 years after definitive prosthetic rehabilitation, which was undertaken after late secondary alveolar bone ...
Gizem Altundal, Sinem Gümüş, Erol Kozanoğlu, Sevde Şirikçi Biberci, Asuman Deniz Gümrü Çelikel   +4 more
wiley   +1 more source

Evaluation of self-consistent polycrystal plasticity models for magnesium alloy AZ31B sheet [PDF]

, 2010
Various self-consistent polycrystal plasticity models for hexagonal close packed (HCP) polycrystals are evaluated by studying the deformation behavior of magnesium alloy AZ31B sheet under different uniaxial strain paths.
B. Raeisinia, C.N. Tomé, P.D. Wu, Huamiao Wang, Wang, Huamiao, Agnew, S.R., Wu, P.D., S.R. Agnew, Raeisinia, B., Tomé, C.N.   +9 more
core   +1 more source

Influence of Simulated Clinical Finishing/Polishing Protocols and Thermocycling on the Surface Integrity and Mechanical Performance of 3Y‐TZP

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Purpose This in vitro study evaluated the influence of different finishing and polishing protocols associated with thermocycling aging on surface roughness, flexural strength, and topography of 3Y‐TZP. Methods and Materials Two hundred and eighty‐six specimens (16 × 3 × 1 mm) were distributed into 22 groups (n = 13) according to the finishing ...
Cecília Alves de Sousa, Henrico Badaoui Strazzi‐Sahyon, Ariane Rodrigues Barion, Paulo Henrique dos Santos, Wirley Gonçalves Assunção   +4 more
wiley   +1 more source

Strengthening mechanism of polycrystal AuPt alloys during nanoindentation

The strengthening mechanisms of the polycrystal AuPt alloys with homogeneous composition have been revealed in this work. The effects of the temperature and composition ratio on the nanoindentation behavior of AuPt alloys are investigated by molecular ...
Du, Chunyang, Chen, Shanyong, Luo, Gangjie, Tian, Yuanyuan, Liu, Qi   +4 more
core   +1 more source