scholarly journals Ultrastructural and Immunocytochemical Characterization of the Bone-Single Crystal Sapphire Implant Interface in the Rat Maxilla

1996 ◽  
Vol 1 (2) ◽  
pp. 84-89
Author(s):  
Joviniano Martins de Oliveira Jr ◽  
Tetsuji Ogawa ◽  
Hiroyuki Kawaguchi ◽  
Yuri Fujitani ◽  
Teruko Fujiwara ◽  
...  
Keyword(s):  
Single Crystal ◽  
Single Crystal Sapphire

Characterization of single-crystal sapphire substrates by X-ray methods and atomic force microscopy

2011 ◽  
Vol 56 (3) ◽  
pp. 456-462 ◽  
Author(s):  
I. A. Prokhorov ◽  
B. G. Zakharov ◽  
V. E. Asadchikov ◽  
A. V. Butashin ◽  
B. S. Roshchin ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Single Crystal ◽  
X Ray ◽  
Force Microscopy ◽  
Sapphire Substrates ◽  
Atomic Force ◽  
Single Crystal Sapphire ◽  
Ray Methods

Characterization of anisotropic wet etching of single-crystal sapphire

2020 ◽  
Vol 303 ◽  
pp. 111667 ◽  
Author(s):  
Yan Xing ◽  
Zhiyue Guo ◽  
Miguel A. Gosálvez ◽  
Guorong Wu ◽  
Xiaoli Qiu
Keyword(s):  
Single Crystal ◽  
Wet Etching ◽  
Single Crystal Sapphire

Experimental characterization of conformal hydrodynamic nanopolishing of a machined single crystal sapphire cavity

2021 ◽  
pp. 251659842110153
Author(s):  
Prashant Kumar ◽  
Rinku Mittal ◽  
Ramesh K. Singh ◽  
Suhas S. Joshi
Keyword(s):  
Particle Size ◽  
Single Crystal ◽  
Surface Finish ◽  
Abrasive Particle ◽  
Diamond Turning ◽  
Initial Surface ◽  
Workpiece Surface ◽  
Abrasive Particles ◽  
Single Crystal Sapphire

Sapphire is an important ceramic material which finds applications in fields such as temperature sensing, optics, electronics, and ceramic bearings. Polishing of sapphire has always been a difficult task for industries and research communities. Hydrodynamic polishing (HDP) is one of the prominent methods used for polishing of hard and profiled surfaces, whereas rigid tool-based methods such as diamond turning, grinding, and honing have many limitations. The HDP process involves deterministic flow of abrasive particles in the slurry between the workpiece surface and a rotating soft tool to obtain the desired surface finish. A novel experimental setup has been fabricated to realize the conformal hydrodynamic nanopolishing on single crystal sapphire cavity. In this study, the experiments were conducted to understand the effect of abrasive particle size, basicity of slurry, and change in temperature of slurry on the polishing of machined sapphire cavity. The effect of the initial surface roughness of the machined cavity on conformal hydrodynamic nanopolishing has also been investigated. A microcrack/pit-free surface has been found after the final polishing of the sapphire cavity. An improvement of 21% is found in surface finish after the final polishing using abrasive particle size of 0.06 µm. Abrasive slurry with higher basicity (pH 13) does not improve the surface finish. By heating the abrasive slurry to a temperature of 70°C–75°C, surface finish improves by ∼26% as compared to improvement of ∼ 21% at room temperature polishing.

Spectral Investigation on the Growth and Characterization of NLO Crystals of Thiourea Succinic Acid Single Crystal.

2015 ◽  
Vol 2 (2) ◽  
pp. 70-73
Author(s):  
Kannan.P ◽  
Thambidurai.S ◽  
Suresh.N
Keyword(s):  
Single Crystal ◽  
Succinic Acid ◽  
Slow Evaporation Technique ◽  
Absorption Studies ◽  
Dta Analysis ◽  
Evaporation Technique ◽  
Ft Ir ◽  
Ir Spectroscopic ◽  
Thermal Stability Of

Growth of optically transparent single crystals of thiourea succinic acid (TUSA) was grown successfully from aqueous solution by slow evaporation technique. The crystal structure was elucidated using the single crystal XRD. The various functional groups and the modes of vibrations were identified by FT-IR spectroscopic analysis. The optical absorption studies indicate that the optical transparency window is quite wide making its suitable for NLO applications. Thermal stability of the crown crystal carried out by TGA-DTA analysis.

Sign in / Sign up

Export Citation Format

Share Document