Results 131 to 140 of about 918,356 (360)

(Ti,Zr,Hf,Ta)CN/SiCN: A new ultrahigh-temperature ceramic nanocomposite with excellent mechanical properties and ablation resistance

open access: yesJournal of Advanced Ceramics
Dense monolithic (Ti,Zr,Hf,Ta)CN/SiCN ceramic nanocomposites are prepared via the pyrolysis of novel (Ti-,Zr-,Hf-,Ta)-containing single-source precursors (SSPs) and spark plasma sintering (SPS) with a high heating rate.
Tianxing Jiang   +7 more
doaj   +1 more source

Burden for manufacture of ceramic material [PDF]

open access: yes
A Soviet invention is discussed. The invention refers to ceramic materials which can be obtained by methods of powder metallurgy and can be used in high temperature ...
Chechenya, T. V., Osipova, Y. A.
core   +1 more source

Toward decarbonization of the titanium industry via hydrogen plasma smelting reduction

open access: yesAdvanced Science, EarlyView.
Hydrogen plasma smelting reduction enables direct, zero‐carbon conversion of low‐grade ilmenite into steel‐grade iron and a titania‐rich precursor for pigment production. The single‐step process merges smelting and refining, sharply lowers silica content, and offers a breakthrough path for sustainable, high‐value extraction from abundant mineral sands.
Laura Gabriela Torres‐Mejia   +5 more
wiley   +1 more source

Single-source-precursor synthesis and air-plasma ablation behavior of (Ti,Zr,Hf)C/SiC ceramic nanocomposites at 2200 °C

open access: yesJournal of Advanced Ceramics
Dense monolithic (Ti,Zr,Hf)C/SiC ceramic nanocomposites with four different molar ratios of metallic elements in the (Ti,Zr,Hf)C phase (i.e., Ti : Zr : Hf = 1 : 1 : 1, 2 : 3 : 5, 2 : 3 : 3, and 1 : 2 : 1) were prepared upon pyrolysis of novel (Ti,Zr,Hf ...
Li Lu   +7 more
doaj   +1 more source

High temperature compositions Patent [PDF]

open access: yes, 1967
Method for producing refractory molybdenum ...
Long, R. A.
core   +1 more source

Sc/Mg Co‐Doping in Na3Zr2Si2PO12 Solid‐State Electrolytes Enables Outstanding Performance of Sodium Metal Batteries

open access: yesAdvanced Science, EarlyView.
This study explores an aliovalent cation co‐doping strategy involving Sc3+/Mg2+ substitution in Na3Zr2Si2PO12 solid‐state electrolyte for high‐performance sodium metal batteries. The optimal Na3.7Zr1.45Sc0.4Mg0.15Si2PO12 SSE significantly enhances the ionic conductivity and regulates the interfacial chemistry, resulting in outstanding rate capability ...
Xin Wang   +9 more
wiley   +1 more source

Elemental synergistic effect for enhancing ablation resistance of Zr1/2Hf1/3Ti1/12Ta1/12C ceramic

open access: yesAdvanced Powder Materials
Formation of multicomponent ceramics is one of the most promising strategies for enhancing the ablation resistance of ultra-high-temperature carbide ceramics (UHTCCs), while the effects of the elements are the foundation.
Weilong Song   +7 more
doaj   +1 more source

Effect of Nanocarbon on the Structural and Mechanical Properties of 6061 Aluminum Composites by Powder Metallurgy. [PDF]

open access: yesNanomaterials (Basel), 2023
Rativa-Parada W   +5 more
europepmc   +1 more source

Powder metallurgical materials and processes for soft magnetic applications [PDF]

open access: yes, 2018
For many designers of electrical machines, the term “soft magnetic materials” automatically means laminated electrical sheet. This is unfortunate, since for many applications, particularly at low frequencies, laminated sheet is rarely the best material ...
Dougan, Mark J.
core  

Reducing Coercive Field and Improving Endurance in Ferroelectric Epitaxial Hf0.5Zr0.5O2 Thin Films via Novel Interface Layer Approach

open access: yesAdvanced Science, EarlyView.
An ultrathin samarium doped hafnium zirconium oxide (Sm:HZO) underlayer reduces coercive field by ∼25% and enhances endurance tenfold in epitaxial ferroelectric HZO overlayer. The Sm:HZO interface allows redox mitigated oxygen exchange and lowers switching barriers, achieving stable polarization with enhanced endurance performance.
Ji Soo Kim   +9 more
wiley   +1 more source

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