Results 21 to 30 of about 112,198 (176)

Rigid three-dimensional networks of hafnium diboride for improving mechanical and wear properties of boron carbide

open access: yesMaterials & Design, 2021
Being one of the hardest materials known in nature, boron carbide (B4C) suffers from severe degradation of mechanical properties when subjected to external pressure or shear stress, which hinders its application in metal forming and machining industries.
Leilei Chen   +8 more
doaj   +1 more source

SOME PROPERTIES OF HAFNIUM OXIDE, HAFNIUM SILICATE, CALCIUM HAFNATE AND HAFNIUM CARBIDE

open access: yesJournal of the American Ceramic Society, 1954
The behavior of hafnium oxide was studied particularly in the temperature range 1500° to 18OO°C. Properties of HfO 2 at these temperatures and its reactions with ZrO 2 , SiO 2 , and CaO are given in terms of ...
C Curtis, L Doney, J Johnson
openaire   +3 more sources

Theoretical insight into structural and mechanical features of Hf0.5Ta0.5C [PDF]

open access: yesProcessing and Application of Ceramics
Tantalum carbide (TaC) and hafnium carbide (HfC), as well as mixed hafnium tantalum carbides, are of great recent scientific and industrial interest due to their structural features, and thermal, elastic and mechanical properties.
Zagorac Jelena   +5 more
doaj   +1 more source

A new method to quantitatively control oxygen fugacity in externally heated pressure vessel experiments [PDF]

open access: yesEuropean Journal of Mineralogy, 2020
Oxygen fugacity (fO2) is a fundamental variable affecting phase equilibrium in magmas, and in externally heated pressure vessel experiments it is typically controlled by using redox buffer assemblages.
A. Alex, Z. Zajacz
doaj   +1 more source

Ablation of C/SiC-HfC composite prepared by precursor infiltration and pyrolysis in plasma wind tunnel

open access: yesJournal of Advanced Ceramics, 2020
Carbon fiber reinforced silicon carbide-hafnium carbide (C/SiC-HfC) composite was prepared by precursor infiltration and pyrolysis process. Then, ablation behavior of C/SiC-HfC was evaluated in plasma wind tunnel.
Liuyang Duan   +3 more
doaj   +1 more source

Field Electron Emission of Hafnium Carbide [PDF]

open access: yes, 2019
Hafnium carbide, or HfC, is a robust material whose high melting point makes it an advantageous electron source for a variety of uses, including imaging.
Mackie, William   +2 more
core   +1 more source

SCIENTIFIC FOUNDATIONS FOR THE CREATION OF HIGHLY ENTROPIC CARBIDE AND OXIDE NANOCOATINGS ON SUPERHARD MATERIAL CORTINITE

open access: yesАвіаційно-космічна техніка та технологія, 2017
The possibility of creating highly entropic carbide and oxide nanocoatings on superhard material Cortinitis based on hafnium, zircon, molybdenum, tungsten, yttrium and nickel was investigated.
Геннадий Игоревич Костюк   +1 more
doaj   +1 more source

Facile Synthesis of High-Purity Nanostructured Hafnium Carbide via Pectin-Assisted Carbothermal Reduction: Structural Evolution and Morphological Insight

open access: yesInorganics
Hafnium carbide (HfC) ceramics are of growing interest due to their exceptional mechanical properties and ultra-high melting points, making them ideal for extreme environmental applications.
Laura G. Ceballos-Mendívil   +6 more
doaj   +1 more source

Sonochemical Synthesis of Air-Insensitive Carbide-Stabilized Hafnium Subhydride Nanopowder

open access: yes, 2016
Sonochemical Synthesis of Air-Insensitive Carbide-Stabilized Hafnium Subhydride ...
Albert Epshteyn (1271604)   +4 more
core   +1 more source

Research on the Synthesis of Hafnium Diboride via Molten Salts

open access: yesKuangchan zonghe liyong
This is an article in the field of metallurgical engineering. High purity hafnium diboride (HfB2) powders were synthesized from hafnium oxide (HfO2) and boron carbide (B4C) powders via sodium chloride as the molten salt through boron/carbon thermal ...
Chong YU, Can LIU, Yiran PU, Hao WU
doaj   +1 more source

Home - About - Disclaimer - Privacy