Results 261 to 270 of about 122,922 (297)

Strengthening Sapphire by Compressive Surface Layers

Journal of Applied Physics, 1969
Compressive surface layers were formed on sapphire rods. The methods included glazing and quenching, formation of Al2O3–Cr2O3 solid solution surface layers, and formation of mullite and calcium aluminate surface layers. The presence of the compressive stresses was demonstrated by slotted rod tests.
H. P. Kirchner, R. M. Gruver, R. E. Walker   +2 more
openaire   +1 more source

Strengthening of steels by surface hardening

Metal Science and Heat Treatment, 1969
1. The degree of hardening and magnitude of the residual stresses resulting from burnishing depend on the chemical composition, properties, and structure of steels. The greatest increase of hardness and residual compressive stresses was observed in steels with a martensitic structure and the lowest in steels with a sorbitic structure. 2.
openaire   +1 more source

Strengthening of Heat-Insulating Surfaces

2004
The methods of pulsed-plasma dynamic, laser strengthening of the coating surfaces, and coating formation by thermogaseous plasma deposition of finely-dispersed particles are used to form fine and nanocrystalline structures on the outer surfaces of the heat-insulating coatings.
V.I. Bogdanovich, V.A. Barvinok
openaire   +1 more source

Strengthening of face packing surfaces with powders

Chemical and Petroleum Engineering, 1982
The primary reason for failure of centrifugal pumps used in chemical fiber production plants is failure of the tightness of the rubbing surfaces of the face packing surfaces caused by mechanical-corrosion wear. To increase the life, coatings of Ni-Cr-B-Si selffluxing alloy powders are normally applied to their working surface.
N. N. Dorozhkin, V. N. Gimei'farb, L. P. Kashitsyn   +2 more
openaire   +1 more source

Capillary Migration of Peptide Nanowires for Surface Strengthening

Biomacromolecules
This study explores the capillarity-guided self-assembly of cyclo-diphenylalanine (FF) nanowires on surface defects with engineered topographies, emphasizing the interplay between geometric confinement and evaporation-driven flow. Evaporation on v-groove and trench substrates induces directional migration and alignment of FF nanowires, forming ordered,
Ho Young Lee, Joonseok Lee, Wonsik Eom, Won Jun Lee   +3 more
openaire   +2 more sources

Strengthening of the surface layer during shot blasting

Assembling in Mechanical Engineering and Instrument-Making, 2021
Mathematical dependence of the speed of interaction of the shot with the surface of the part on its mass and physical and mechanical properties of the materials of the part and the shot, depth of the strengthening layer during shot-blasting exercise is justified.
Yu.Z. Zhitnikov, B.Yu. Zhitnikov, O.V. Zolotareva, M.I. Maksimova   +3 more
openaire   +1 more source

[Strengthening for dental porcelain surface].

Aichi Gakuin Daigaku Shigakkai shi, 1990
Although the metal crown is aesthetically improved when porcelain is fused to it, a large number of different factors often cause the porcelain to break. Here we report a method to prevent this from happening. As a hardening treatment for the porcelain surface, the Na-ions in the porcelain, which have a short radius, were replaced by K-ions having a ...
A, Araki, S, Takehana, N, Tsukamoto, K, Hashimoto, K, Matsuyama, K, Sakuma, K, Sakai   +6 more
openaire   +1 more source

Strengthening the Surface Water Treatment Rule

Journal AWWA, 1993
Changes to the current Surface Water Treatment Rule will likely affect water utility compliance with the new Disinfection‐Disinfection Byproducts Rule. As a result, the reg‐neg committee agreed that the USEPA would propose an interim “enhanced” Surface Water Treatment Rule that would include a wide range of regulatory options.
openaire   +1 more source

Strengthening of Surfaced and Sprayed Coatings by Carbonitration

Chemical and Petroleum Engineering, 2014
The structure and hardness of surfaced and sprayed high-alloy steel coatings strengthened by nitration is studied.
openaire   +1 more source

Gas vesicles are strengthened by the outer-surface protein, GvpC

Archives of Microbiology, 1992
The critical collapse pressure of gas vesicles isolated from Anabaena flos-aquae decreased from 0.557 to 0.190 MPa when GvpC, the hydrophilic 22 kDa protein present on the outer surface of the gas vesicle, was removed by rising in 6 M urea. Recombinant GvpC was purified from inclusion bodies, produced in an E.
Hayes, PK, Buchholz, B, Walsby, AE
openaire   +2 more sources