Results 61 to 70 of about 6,173 (209)

Pad Scratching in Chemical-Mechanical Polishing: The Effects of Mechanical and Tribological Properties [PDF]

, 2014
In chemical-mechanical polishing (CMP), even the soft pad asperities may, under certain conditions, generate scratches on the relatively hard surfaces being polished. In the present study, contact mechanics models of pad-induced scratching are formulated,
Chun, Jung-Hoon, Kim, Sanha, Saka, Nannaji   +2 more
core   +1 more source

Flax Fiber Flyash/Steel Reinforced Sustainable Composites in Corrosive Conditions: Mechanical, Wear, and Corrosion Properties

Polymer Composites, EarlyView.
Materials used for fabricating sustainable composites. ABSTRACT A composite sample with 18% flax fiber flyash (FF) exhibits increased tensile strength (TS) and greater load‐transfer efficiency of the reinforcement under corrosive conditions.
Sumesh Keerthiveettil Ramakrishnan, Kavimani Vijayananth, Tatana Vackova   +2 more
wiley   +1 more source

Multilayer epitaxial graphene formed by pyrolysis of polycrystalline silicon-carbide grown on c-plane sapphire substrates

, 2011
We use ultra-high vacuum chemical vapor deposition to grow polycrystalline silicon carbide (SiC) on c-plane sapphire wafers which are then annealed between 1250 and 1450{\deg}C in vacuum to create epitaxial multilayer graphene (MLG).
Breslin, Christopher M., Chu, Jack O., Dimitrakopoulos, Christos, Grill, Alfred, Krishnan, Mahadevaiyer, Liu, Zihong, McArdle, Timothy J., Wisnieff, Robert, Zhu, Yu   +8 more
core   +1 more source

Atomic Step–Terrace Ordering Enables Unprecedentedly Low Pop‐in Stress Scatter in GaN (0001)

Small, EarlyView.
Step–terrace GaN surfaces with monoatomic topography were realized using catalyst‐referred etching. On these surfaces, pop‐ins occurred at ideal strength with a record‐low stress scatter of 2.3%, providing compelling evidence that atomic‐scale surface ordering plays a critical role in triggering incipient plasticity. Atomic‐scale surface irregularities,
Hiroto Oguri, Yan Li, Ai I. Osaka, Rikuta Hara, Ryosuke Kinoshita, Daisetsu Toh, Azusa N. Hattori, Eita Tochigi, Atsutomo Nakamura   +8 more
wiley   +1 more source

Self‐Assembled Conjugated Hollow Fibers for Spongy Monoliths Toward Solar‐Driven Desalination and Hydrovoltaic Electricity Generation

Small, EarlyView.
A self‐assembled conjugated hollow fiber monolith enables simultaneous solar‐driven desalination and hydrovoltaic electricity generation. Metal‐free polymerization produces cross‐linked hollow fibers that entangle into a porous monolith, followed by gradient polypyrrole coating for efficient light absorption and directional water transport.
Songah Jeong, Jinhyeok Kang, Youngwoo Kwak, Sumin Kang, Changwoo Nam, Hyungwoo Kim   +5 more
wiley   +1 more source

Scratch generation probability in chemical mechanical polishing (CMP) process

, 2020
Chemical mechanical polishing (CMP) process is a critical new technology to planarize the wafer surface aided by the combined force of the chemical etching and mechanical polishing. In this process, defectivity due to scratch generation has become more and more important as it influences the wafer product quality, throughput and cost significantly with
openaire   +4 more sources

Understanding UV‐Induced Degradation Mechanisms in SHJ Solar Cells and Their Reversibility: The Role of Hydrogen and Doping

Progress in Photovoltaics: Research and Applications, Volume 34, Issue 6, Page 643-652, June 2026.
This study investigates the UV‐induced degradation of silicon heterojunction cell precursors by isolating the impact of subcell layers under controlled UVA and UVB irradiation. Front hydrogenated amorphous silicon (i/n)a‐Si:H selective layers are identified as key degradation sites, leading to significant losses in minority carrier lifetime and iVoc ( >
Hugo Lajoie, Frédéric Jay, Maxime Babics, Tristan Gageot, Romain Couderc, Névine Rochat, Hélène Coudert‐Alteirac, Sandrine Therias   +7 more
wiley   +1 more source

AI‐Driven Properties Prediction in Si3N4 Ceramics: Image‐Based and Processing Parameter Strategies

International Journal of Applied Ceramic Technology, Volume 23, Issue 3, June 2026.
ABSTRACT This review presents AI‐based approaches for predicting key properties of silicon nitride (Si3N4) ceramics from both microstructural images and process parameters. Convolutional neural networks (CNNs) successfully predicted bending strength, fracture toughness, and dielectric breakdown strength directly from microstructural images, with higher
Ryoichi Furushima, Yuki Nakashima, You Zhou, Manabu Fukushima   +3 more
wiley   +1 more source

Dressed Photon-phonon Technology for Ultra Flat Surface [PDF]

, 2013
A reduction of the surface roughness, Ra, is required in various applications including electronic devic-es and / or optical devices. Although chemical-mechanical polishing (CMP) has been used to flatten the sur-faces, it is generally limited to reducing
Ohtsu, M., Yatsui, T.
core   +1 more source

Monolithic Integration of ScAlN Modulators on Silicon‐On‐Insulator Platform

Laser &Photonics Reviews, Volume 20, Issue 9, 6 May 2026.
Monolithic integration of scandium‐doped aluminum nitride (ScAlN) modulators on a silicon‐on‐insulator platform is reported. A multilayer electrode design enhances RF‐optical field overlap, enabling direct access to the diagonal electro‐optic coefficient and improved modulation efficiency.
Sihao Wang, Bo Li, Lin Zhou, Victor Leong, Nanxi Li, Xianshu Luo, Di Zhu   +6 more
wiley   +1 more source