Influence of hydrostatic treatment of greenware and sintering schedules on the properties of ceramics in the tialite-mullite-corundum system

Refractories ◽  
1993 ◽  
Vol 34 (1-2) ◽  
pp. 82-86
Author(s):  
N. A. Dabizha ◽  
V. V. Storozh ◽  
G. Ya. Akimov ◽  
A. A. Dabizha
Keyword(s):  
Hydrostatic Treatment

Structure of metal-oxide ceramics after hydrostatic treatment of the initial powder

1991 ◽  
Vol 30 (3) ◽  
pp. 246-249
Author(s):  
V. M. Svistunov ◽  
V. P. Buryak ◽  
E. A. Pavlovskaya ◽  
B. A. Shevchenko ◽  
O. N. Mironova ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Oxide Ceramics ◽  
Initial Powder ◽  
Structure Of Metal ◽  
Hydrostatic Treatment

Properties of epoxy polymers modified by hydrostatic treatment

1990 ◽  
Vol 26 (2) ◽  
pp. 149-153 ◽  
Author(s):  
V. A. Beloshenko ◽  
M. K. Pakter ◽  
B. I. Beresnev ◽  
T. P. Zaika ◽  
V. G. Slobodina ◽  
...  
Keyword(s):  
Epoxy Polymers ◽  
Hydrostatic Treatment

scholarly journals Highly stable porous cellulose materials to utilize lactic acid

2021 ◽  
Author(s):  
So Hee Kim ◽  
Sang Wook Kang
Keyword(s):  
Lactic Acid ◽  
Cellulose Acetate ◽  
Low Cost ◽  
Water Flux ◽  
Flux Measurement ◽  
Porous Membrane ◽  
Average Pore ◽  
Hydrostatic Treatment ◽  
And Performance ◽  
Cellulose Materials

Abstract In this study, a porous membrane consisting of lactic acid and cellulose acetate was fabricated using a low-cost and pro-environmental process. The wetting action of the lactic acid induced a plasticization effect in the cellulose acetate chain, forming several small pores during the hydrostatic treatment. The surface and cross-section of the membranes were observed using scanning electron microscopy, and the interaction between cellulose acetate and lactic acid was investigated using Fourier transform infrared spectroscopy. Furthermore, thermogravimetric analysis was performed to determine the thermal stability of the membrane and the removal of lactic acid by the hydrostatic treatment. In addition, the optimum composition and performance of the composite were investigated via water flux measurement. Furthermore, the average pore diameter and porosity of the cellulose acetate/lactic acid membrane measured using a porosimeter was 0.38 μm and 65.3%, respectively.

scholarly journals Unsteady Mass Loss in Close Binaries

1976 ◽  
Vol 73 ◽  
pp. 329-329
Author(s):  
R. F. Webbink
Keyword(s):  
Mass Transfer ◽  
Mass Loss ◽  
Thermal Instability ◽  
Loss Rate ◽  
Mass Loss Rate ◽  
Mass Transfer Rate ◽  
Close Binaries ◽  
Convective Envelope ◽  
Initial Separation ◽  
Hydrostatic Treatment

The evolution of a system of 1.50M⊙ and 0.50M⊙ components with initial separation 3.00R⊙ is presented. The primary reaches its Roche lobe after 6.108 × 108 yr, and the mass loss rate grows quickly to ~ 1.1 × 10−7M⊙ yr−1. The deep convective envelope of the secondary contracts in response to accretion, however, and the system avoids contact, even though the main sequence mass-radius relationship crosses the Roche relationship at 0.758M⊙.The growth of the convective envelope of the primary with mass loss prevents thermaltimescale mass transfer from reaching any stable value. The mass loss rate continues to increase as a result of the tendency of the growing convective envelope to expand with mass loss. A Bath-type pulsational instability in the mass transfer rate is manifested as a longer-period thermal instability in the hydrostatic treatment. Eventually mass loss proceeds on a dynamical timescale, reaching 1.5 × 10−4M⊙yr−1. This is followed by a detached phase with the mass ratio not yet reversed, and a second dynamical episode leaving a 0.6666M⊙ + 1.3334M⊙ binary still in a semi-detached state. The original secondary, now more massive, has a surface luminosity of 0.0538L⊙ but a nuclear luminosity of 1540L⊙, and a convective core of 1.076M⊙ separated by a radiative zone of only 0.028M⊙ from its convective envelope.An attempt is made to follow the evolution of the secondary in the case where the stream energy, much greater than the intrinsic luminosity of the secondary, is dissipated spherically symmetrically at its surface. The outer envelope departs radically from the previous case, an optically deep radiative surface layer forming, and the convection zone splitting into two, the lower one remaining very massive. Because the mass transfer timescale is short compared with the thermal timescale of the secondary, however, it is concluded that the stream luminosity cannot significantly alter the evolution of the secondary.

Hydrostatic treatment of α-aluminium oxide powders part 1. Microstructure of the particles and sintering

Refractories ◽  
1994 ◽  
Vol 35 (6) ◽  
pp. 189-194
Author(s):  
V. V. Storozh ◽  
G. Ya. Akimov ◽  
G. K. Volkova ◽  
M. P. Gazhura
Keyword(s):  
Aluminium Oxide ◽  
Oxide Powders ◽  
Hydrostatic Treatment

Technology and equipment for hydrostatic treatment of materials

1989 ◽  
Vol 1 (5-6) ◽  
pp. 353-355
Author(s):  
B. I. Beresnev ◽  
V. G. Synkov
Keyword(s):  
Hydrostatic Treatment

Exprimental study on hydrostatic treatment of ZK60 magnesium alloy

2019 ◽  
Vol 6 (8) ◽  
pp. 086544
Author(s):  
Mengjun Zhao ◽  
Rongxian Qiu ◽  
Zhilin Wu
Keyword(s):  
Magnesium Alloy ◽  
Hydrostatic Treatment ◽  
Zk60 Magnesium Alloy
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