Results 81 to 90 of about 347,742 (199)

Resistance to Fracture of Two All-Ceramic Crown Materials Following Endodontic Access [PDF]

, 2006
Statement of problem There is currently no protocol for managing endodontic access openings for all-ceramic crowns. A direct restorative material is generally used to repair the access opening, rendering a repaired crown as the definitive restoration ...
Berzins, David W., Luo, Qing, Nagy, William W., Thompson, Geoffrey A., Toth, Jeffrey M., Wood, Kelly Copps   +5 more
core   +1 more source

Copper chloride cathode for a secondary battery [PDF]

, 1990
Higher energy and power densities are achieved in a secondary battery based on molten sodium and a solid, ceramic separator such as a beta alumina and a molten catholyte such as sodium tetrachloroaluminate and a copper chloride cathode.
Bankston, Clyde P., Bugga, Ratnakumar V., Distefano, Salvador, Nagasubramanian, Ganesan   +3 more
core   +1 more source

Excitonic properties of F-centers in $\alpha$-alumina from First Principles Calculation

, 2018
We use state-of-the art GW-BSE formalism to study electronic structure and optical properties of oxygen vacancies in $\alpha$-alumina. Many body perturbation theory within GW approximation in recent years have been used extensively to study excited state
Biswas, Tathagata, Jain, Manish
core   +1 more source

Properties and Preparation of Alumina Nanomaterials and Their Application in Catalysis

Micro
Nanomaterials are materials in which at least one dimension in three-dimensional space is at the nanoscale. In recent years, nano-alumina has attracted much attention due to its large specific surface area and pore volume, as well as novel optical ...
Hairuo Zhu, Kangyu Liu, Zhaorui Meng, Huanhuan Wang, Yuming Li   +4 more
doaj   +1 more source

Fabrication of thin layer beta alumina [PDF]

Beta alumina tubes having walls 700 microns, 300 microns, and 140 microns were processed by extrusion and sintering utilizing Ford proprietary binder and fabrication systems.
Tennenhouse, G. J.
core   +1 more source

Kesedaran kognitif dalam aplikasi reka bentuk antara muka bagi pemantauan penyelenggaraan [PDF]

, 2019
Kesedaran Situasi adalah keupayaan manusia untuk mengenal pasti, memproses, dan memahami maklumat berkenaan bagaimana untuk bertahan dalam keadaan kecemasan. Lebih mudah, ia untuk mengetahui apa yang sedang berlaku di sekeliling anda.
Rosli, Muhammad Mujahid
core  

Alumina bearing in gas-lubricated gyros [PDF]

Friction and wear properties of alumina bearings for use in gas-lubricated ...
Rutherford, J. L., Swain, W. B.
core   +1 more source

Quantification of Wettability and Surface Tension of Liquid Aluminum 7075 Alloy on Various Substrates

Journal of Manufacturing and Materials Processing
To support computational studies and process optimization that require temperature-dependent thermophysical properties, this study characterized the wettability, surface tension, liquid–solid interfacial tension (IFT), and work of adhesion of Al 7075-T6 ...
Chukwudalu Uchenna Uba, Jonathan Richard Raush   +1 more
doaj   +1 more source

Study of the effects of gaseous environments on the hot corrosion of superalloy materials [PDF]

The effect of the gaseous corrodent NaCl on the high temperature oxidation and sodium sulfate induced hot corrosion behavior of alumina formers, chromia formers, and the superalloy B-1900 was examined.
Bornstein, N. S., Smeggil, J. G.
core   +1 more source

Tribological evaluation of an Al2O3-SiO2 ceramic fiber candidate for high temperature sliding seals [PDF]

A test program to determine the relative sliding durability of an alumina-silica candidate ceramic fiber for high temperature sliding seal applications as described.
Dellacorte, Christopher, Steinetz, Bruce
core   +1 more source