Application of a two-stage method of decoration to the examination of the real surface structure of silicon carbide single crystals

1972 ◽  
Vol 11 (10) ◽  
pp. 842-843
Author(s):  
A. N. Pilyankevich ◽  
L. V. Strashinskaya
Keyword(s):  
Silicon Carbide ◽  
Surface Structure ◽  
Single Crystals ◽  
Real Surface ◽  
Two Stage ◽  
The Real

Scanning electron microscopy of human iliac bone by a simple preparation method

1990 ◽  
Vol 48 (3) ◽  
pp. 226-227
Author(s):  
Toshihiko Takita ◽  
Tomonori Naguro ◽  
Toshio Kameie ◽  
Akihiro Iino ◽  
Kichizo Yamamoto
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Preparation Method ◽  
Specimen Preparation ◽  
Real Surface ◽  
Public Attention ◽  
Preparation Methods ◽  
The Real ◽  
Simple Preparation ◽  
Scanning Electron

Recently with the increase in advanced age population, the osteoporosis becomes the object of public attention in the field of orthopedics. The surface topography of the bone by scanning electron microscopy (SEM) is one of the most useful means to study the bone metabolism, that is considered to make clear the mechanism of the osteoporosis. Until today many specimen preparation methods for SEM have been reported. They are roughly classified into two; the anorganic preparation and the simple preparation. The former is suitable for observing mineralization, but has the demerit that the real surface of the bone can not be observed and, moreover, the samples prepared by this method are extremely fragile especially in the case of osteoporosis. On the other hand, the latter has the merit that the real information of the bone surface can be obtained, though it is difficult to recognize the functional situation of the bone.

Two-stage self-seeding method for preparation of single crystals of poly(phenylene sulfide)

1989 ◽  
Vol 47 ◽  
pp. 368-369
Author(s):  
Sengshiu Chung ◽  
Peggy Cebe
Keyword(s):  
Single Crystals ◽  
High Performance ◽  
Dilute Solution ◽  
Two Stage ◽  
Annealing Behavior ◽  
High Performance Polymers ◽  
Seeding Method ◽  
Phenylene Sulfide

We are studying the crystallization and annealing behavior of high performance polymers, like poly(p-pheny1ene sulfide) PPS, and poly-(etheretherketone), PEEK. Our purpose is to determine whether PPS, which is similar in many ways to PEEK, undergoes reorganization during annealing. In an effort to address the issue of reorganization, we are studying solution grown single crystals of PPS as model materials.Observation of solution grown PPS crystals has been reported. Even from dilute solution, embrionic spherulites and aggregates were formed. We observe that these morphologies result when solutions containing uncrystallized polymer are cooled. To obtain samples of uniform single crystals, we have used two-stage self seeding and solution replacement techniques.

Photoelectron spectroscopic study of electronic state and surface structure of In2O3 single crystals

2016 ◽  
Vol 10 (1) ◽  
pp. 011102 ◽  
Author(s):  
Takahiro Nagata ◽  
Oliver Bierwagen ◽  
Zbigniew Galazka ◽  
Masataka Imura ◽  
Shigenori Ueda ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Surface Structure ◽  
Single Crystals ◽  
Electronic State

Identification and Minimization of Deviations of Real Gear Tooth Surfaces

1989 ◽  
Author(s):  
F. L. Litvin ◽  
Y. Zhang ◽  
J. Kieffer ◽  
R. F. Handschuh
Keyword(s):  
Machine Tool ◽  
Gear Tooth ◽  
Real Surface ◽  
The Real ◽  
Tooth Surfaces ◽  
Coordinate Measurements

Abstract The authors propose an approach that uses coordinate measurements of the real surface to: (i) determine the real applied machine-tool settings, (ii) determine the deviations of the real surface from the theoretical one, (iii) minimize the deviations by correction of the machine-tool settings, and (iv) represent the real surface analytically in the same Gaussian coordinates as the theoretical one.

scholarly journals Magnetic properties of the natural and isotope-modified diamond and silicon carbide

2018 ◽  
Vol 185 ◽  
pp. 04007 ◽  
Author(s):  
A.N. Taldenkov ◽  
A.V. Inyushkin ◽  
E.A. Chistotina ◽  
V.G. Ralchenko ◽  
A.P. Bolshakov ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Magnetic Properties ◽  
Isotopic Composition ◽  
Single Crystals ◽  
High Purity ◽  
Diamagnetic Susceptibility ◽  
Synthetic Diamond ◽  
Paramagnetic Centers ◽  
Natural Isotopic Composition ◽  
Ferromagnetic Component

The magnetic properties of single crystals of synthetic diamond and crystals of silicon carbide were studied. High-purity samples of diamonds synthesized with HPHT and CVD technologies were used. The crystals of silicon carbide were grown by sublimation and industrial technology. Along with samples with a natural isotopic composition, monoisotopic crystals of diamond (99.96% 12C and 99.96% 13C) and silicon carbide (99.993% of 28Si) were studied. On the basis of the data obtained, the diamagnetic susceptibility was determined and the concentration of paramagnetic centers and the content of the ferromagnetic component were evaluated. The results are discussed.

Tailoring the Surface Structure of Silicon Carbide Support for Copper Catalyzed Ethanol Dehydrogenation

ChemCatChem ◽  
2018 ◽  
Vol 11 (1) ◽  
pp. 481-487 ◽  
Author(s):  
Meng‐Yue Li ◽  
Wen‐Duo Lu ◽  
Lei He ◽  
Ferdi Schüth ◽  
An‐Hui Lu
Keyword(s):  
Silicon Carbide ◽  
Surface Structure ◽  
Ethanol Dehydrogenation

Polytype formation in silicon carbide single crystals

2007 ◽  
Vol 16 (3) ◽  
pp. 654-657 ◽  
Author(s):  
Xiang-Biao Li ◽  
Er-Wei Shi ◽  
Zhi-Zhan Chen ◽  
Bing Xiao
Keyword(s):  
Silicon Carbide ◽  
Single Crystals
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