Results 71 to 80 of about 8,387 (205)

White layer changes in cBN tools when turning hardened steel [PDF]

open access: yesTehnika, 2015
The paper presents experimental results of investigations in turning of hard Machin able steels (60 - 62 HRC) with cutting tools made of cubic boron nitride (cBN) - based polycrystalline super hard material.
Andrej Manohin S.   +4 more
doaj   +1 more source

Electrical Conductivity of Hydrous SiO2: Implications for the Superionic State and High Conductivity Anomalies Beneath Subduction Zones

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract Electrical conductivity (EC) is a key physical property of minerals and rocks that constrains the composition and structure of Earth's deep interior. Theoretical studies predict that the CaCl2‐type hydrous Al‐bearing SiO2 phase, present in subducted crustal materials, becomes superionic—where protons are no longer bonded to specific oxygen ...
Mako Inada   +5 more
wiley   +1 more source

Damage of the Surface Layer Gears in Grinding Process. [PDF]

open access: yes, 2013
The influence of the grinding process on the condition of the surface layer (SL) obtained by the treatment of the gear with grinding wheels Al2O3, CBN, GF, SG, alloy steels with different parameters of the grinding process and the type of cooling liquid –
Wlazło, Jakub, Wójcik, Ryszard
core  

Effect of Mechanical Activation and High Pressure High Temperature Treatment on Synthesis of Material Based on Nanostructured Boron Nitride

open access: yesМеханика машин, механизмов и материалов, 2019
In the paper, the study of the influence of mechanical activation (MA) and subsequent high pressure high temperature (HPHT) treatment of the powder of hexagonal boron nitride (hBN) on its structure and phase composition is given.
Vladimir T. Senyut   +7 more
doaj  

Ti3C2Tx MXene‐Zirconium Diboride Based Ultra‐High Temperature Ceramics

open access: yesAdvanced Science, Volume 12, Issue 23, June 20, 2025.
This study demonstrates the effectiveness of Ti3C2Tx MXenes as additives in ultra‐high‐temperature ceramics (ZrB₂), enhancing densification, reducing oxygen content, and improving mechanical properties. Through surfactant‐free electrostatic self‐assembly and spark plasma sintering, MXenes enabled the formation of a core–shell microstructure, resulting ...
Srinivasa Kartik Nemani   +11 more
wiley   +1 more source

Physico-mechanical properties of cbn composites with binders based on carbides of TI, CR, V in conditions of high-speed machining of AISI 316L [PDF]

open access: yes, 2018
Досліджено механічні властивості та експлуатаційні характеристики різального матеріалу на основі кубічного нітриду бору зі зв’язками у виді карбідів перехідних металів (Ti, Cr, V), алюміній був введений в шихту якості гетеру.
Петруша, Ігор Андрійович   +2 more
core  

Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites

open access: yesAdvanced Engineering Materials, Volume 27, Issue 10, May 2025.
The use of cold spray (CS) technology for creating cermet deposits, combining ceramic and metallic components, is advancing rapidly. Cermets offer excellent temperature handling and erosion resistance for diverse applications. This review outlines the current state of the art, focusing on the deposition dynamics and strategies to optimize the ...
Romario A. Wicaksono   +2 more
wiley   +1 more source

X-ray Absorption Study of Pulsed Laser Deposited Boron Nitride Films

open access: yes, 1993
B and N K-edge x-ray absorption spectroscopy measurements have been performed on three BN thin films grown on Si substrates using ion-assisted pulsed laser deposition.
Chaiken, A.   +4 more
core   +1 more source

Al‐Rich AlGaN Transistors with Regrown p‐AlGaN Gate Layers and Ohmic Contacts

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 2, January 20, 2025.
Epitaxial regrowth processes for achieving Al‐rich aluminum gallium nitride (AlGaN) high electron mobility transistor (HEMTs) with p‐type gates with large, positive threshold voltage for enhancement mode operation and low resistance Ohmic contacts are reported.
Brianna Klein   +8 more
wiley   +1 more source

Patterned growth and cathodoluminescence of conical boron nitride nanorods

open access: yes, 2006
We demonstrate a simple and effective approach for growing large-scale, high-density, and well-patterned conical boron nitride nanorods. A catalyst layer of Fe(NO3)3 was patterned on a silicon substrate by using a copper grid as a mask. The nanorods were
Chen, Ying   +4 more
core   +1 more source

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