Results 31 to 40 of about 438 (173)

Direct Growth of Transparent Boron Nitride Neutron Shielding Layer for Space Window

Advanced Science, EarlyView.
Direct growth of sp2‐sp3 hybridized BN (HBN) on quartz, enabled by an h‐BN buffer, produces transparent and stable films up to 80 µm thick with high transmittance and strong neutron shielding, making HBN a promising candidate for space windows in long‐term lunar missions.
Dobin Kim, Geunpil Kim, Hwijoon Jeong, Sk Mujaffar Hossain, Satadeep Bhattacharjee, Minjae Isaac Kwon, Yeunjeong Lee, Chanhee Yang, Yeong Seok Ham, Taek‐Soo Kim, Hyowon Moon, Inkyu Park, Seung‐Cheol Lee, Jinhwan Kim, Jongbum Kim, Jaehyun Park   +15 more
wiley   +1 more source

Emerging Device Applications From Strong Light–Matter Interactions in 2D Materials

Advanced Science, EarlyView.
Two‐dimensional semiconductors enable extremely compact optoelectronic devices such as solar cells, sensors, LEDs, and lasers. Their strong light–matter interactions allow efficient light emission, detection, and energy conversion. This review article discusses the recent progress in integrating these materials with optical cavities and nanostructures ...
Janani Archana K, Kumar Shwetabh, Reyas Ali, Ramji Velayutham, Koustav Das, Abhishek Mondal, Prashant Kumar, Surendra B. Anantharaman   +7 more
wiley   +1 more source

Characteristics of machining high hardness steels with face milling using carbide inserts and CBN

Технічна інженерія
In modern mechanical engineering, face milling of high-hardness steels is a crucial process that enables high accuracy and surface quality of machined components.
V.О. Zaloga
doaj   +1 more source

An investigation of abrasive waterjet machining of cubic boron nitride (CBN) with a softer abrasive material

Procedia CIRP, 2020
Abstract For an effective machining of high-performance materials, high-strength cutting materials, e.g. cubic boron nitride (CBN), with high resistance to any kind of wear are used. However, these materials must also be able to be machined in order to produce geometric elements such as chip breakers or chip grooves. According to the current state of
F. Morczinek, M. Putz
openaire   +1 more source

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

Advanced Functional Materials, Volume 36, Issue 20, 9 March 2026.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra, Paul Konrad, Andreas Sperlich, Timur Biktagirov, Wolf Gero Schmidt, Lesley Spencer, Igor Aharonovich, Sven Höfling, Vladimir Dyakonov   +8 more
wiley   +1 more source

Hard machining of agricultural machines parts

Research in Agricultural Engineering, 2013
For the renovation and/or improvement of the surface properties of machine elements, hard facing is often used. Hard structures obtained in layers or by heat treatment achieve a hardness of up to 68 hardness (HRC) or even more.
R. Drlička, J. Žarnovský, R. Mikuš, I. Kováč, M. Korenko   +4 more
doaj   +1 more source

Formation Mechanism of Finished Surface in Ultrahigh-Speed Grinding with cubic Boron Nitride (cBN) Wheels

JSME International Journal Series C, 2006
In this paper, we describe the formation mechanism of a finished surface in ultrahigh-speed grinding under a peripheral wheel speed higher than 200m/s. Grinding experiments using a grinding machine tool equipped with an active magnetic bearing spindle have been conducted over a range of grinding speeds from 60 to 300m/s.
Yoshio ICHIDA, Ryunosuke SATO, Yoshitaka MORIMOTO, Yoshiteru OHSAWA, Nabil Ben FREDJ   +4 more
openaire   +2 more sources

3D characterization of cubic boron nitride (CBN) composites used as tool material for high precision abrasive machining processes [PDF]

Ceramics International, 2017
Cubic boron nitride (CBN) composites are widely used as cutting tool materials for high precision abrasive machining processes. They are composed of super hard CBN abrasives and a softer binder. CBN abrasives are one of the hardest materials. They are embedded in the binder which can be metallic, polymeric or ceramic.
Fang, Shiqi, Llanes, Luis, Bähre, Dirk, Mücklich, Frank   +3 more
openaire   +3 more sources

Ammonothermal Growth of Rhombohedral Boron Nitride

physica status solidi (b), Volume 262, Issue 12, December 2025.
Boron nitride crystals are grown using the ammonothermal technique in a temperature‐induced solubility gradient of BN dissolved in a solution of supercritical ammonia using sodium as the mineralizer. The grown BN crystals harvest off the autoclave walls, and cubic BN seeds are characterized as hexagonal and rhombohedral phases of BN. Boron nitride (BN)
Jacob Dooley, Nathan Stoddard, Kai Landskron, Siddha Pimputkar   +3 more
wiley   +1 more source

RESEARCH ON CBN GRINDING WHEEL PERFORMANCE MONITORING METHOD BASED ON SHANNON ENTROPY AND ACOUSTIC EMISSION SIGNAL (MT)

Jixie qiangdu, 2023
In order to effectively evaluate the grinding performance of CBN（Cubic Boron Nitride） grinding wheel in the grinding process, a monitoring method of CBN grinding wheel performance was proposed based on Shannon entropy theory and acoustic emission signal.
TAN YongMin, SHI Zhan, CHI YuLun, GU JiaJian   +3 more
doaj