Results 261 to 270 of about 848,999 (311)

Electrochemical Etching of Crystalline Quartz

Electrochemical and Solid-State Letters, 2009
We present a method to electrochemically etch crystalline quartz. Electrochemical etching has not been previously explored as a method for processing quartz because of its insulating nature. By injecting energetic charge carriers into the quartz it can be made temporarily conductive, allowing currents which will affect the chemical etch rate.
E. Rodrigue, V. Kaajakari
openaire   +1 more source

Oriented‐Electrochemical Etching of Zn Crystal Edges in Deep Eutectic Solvent for Enhancing Stability and Reversibility of Zn Anodes

Advanced Functional Materials
Metal Zn anode encounters uncontrolled dendrite growth, resulting in poor cycling stability and low coulombic efficiency (CE). Herein, a novel approach for oriented‐electrochemical etching of Zn (ECE‐Zn) in deep eutectic solvent (DES) is presented to ...
Wei Nie, Feng Tian, Le Zhang, Linhui Chang, Qiangchao Sun, Tongdan Duan, Xionggang Lu, Hongwei Cheng   +7 more
semanticscholar   +1 more source

Electrochemical pore etching in germanium

Journal of Electroanalytical Chemistry, 2006
Abstract Nucleation and growth of electrochemically etched pores in Germanium (Ge) was investigated for n- and p-type Ge single crystals with {1 0 0}, {1 1 0}, and {1 1 1} orientations and doping concentrations of (10 14 –10 18 ) cm −3 . Various types of electrolytes, illumination conditions (front side, back side or none), and pre-treatments for ...
C. Fang, H. Föll, J. Carstensen
openaire   +1 more source

Electrochemical etching of silicon carbide

Journal of Solid State Electrochemistry, 1999
Both n- and p-type SiC of different doping levels were electrochemically etched by HF. The etch rate (up to 1.5 μm/min) and the surface morphology of p-type 6H-SiC were sensitive to the applied voltage and the HF concentration. The electrochemical valence of 6.3 ± 0.5 elementary charge per SiC molecule was determined.
Horst Sadowski, Reinhard Helbig, Stefan Rysy   +2 more
openaire   +1 more source

Porous Silicon Fabrication and Surface Cracking Behavior Research Based on Anodic Electrochemical Etching ▴

Fuel Cells, 2020
Porous silicon (PSi) was fabricated based on anodic electrochemical etching, and the relationship between preparation conditions, nanostructure and PSi surface crack behavior were systematically studied.
X. Yang, F. Xi, X. Chen, S. Li, X. Wan, W. Ma, P. Dong, J. Duan, Y. Chang   +8 more
semanticscholar   +1 more source

Electrochemical Tunnel Etching of Aluminum

Journal of The Electrochemical Society, 1984
Anodic dissolution of aluminum in hot chloride solutions produces a high density of fine etch tunnels that extend along [100] directions. Tunnels evolve from cubic etch pits when all but one of the pit wall surfaces become passivated; dissolution then occurs at the one active face at a rate that may initially be as high as 20 A/cm2. Tunnels have square
R. S. Alwitt, H. Uchi, T. R. Beck, R. C. Alkire   +3 more
openaire   +1 more source

Electrochemical pore etching in Ge

physica status solidi (a), 2003
61.43.Gt, 68.37.Hk, 81.65.Cf, 82.45.Vp Nucleation and growth of electrochemically obtained pores on (111) and (100) oriented n-Ge in different electrolytes was investigated. On rough surfaces pore density increases as the current density increases, whereas on smooth surfaces the situation is inverse, i.e., the pore density increases as the current ...
S. Langa, M. Christophersen, J. Carstensen, I. M. Tiginyanu, H. Föll   +4 more
openaire   +1 more source

Optimization of electrochemical etching process for manufacturing of micro electrodes for micro-EDM application

, 2020
Application of Micro-Nano scale Electrical Discharge Machining is rapidly growing in manufacturing of metal products irrespective of its hardness having geometric features in range of micrometer to nanometer scale.
S. Saha, Amit Kumar Ball, A. Mukherjee, Arjita Das, Saurav Halder, N. Hanumaiah   +5 more
semanticscholar   +1 more source

Electrochemical etching of full crowns

Australian Dental Journal, 1983
Abstract— The orientation of full crowns in an electrolytic bath during electrochemical etching influences the amount of gold alloy removal. The etching was non‐uniform and the amount removed not proportional with time.
openaire   +2 more sources

Machine for electrochemical etch stop

SPIE Proceedings, 2001
The configurations of electrochemical silicon etch-stop are discussed in this paper. An electrochemical etching machine with software and hardware, which can control the etching process of silicon very well, is designed and fabricated bas don the theory of electrochemical etching.
Kun Zhou, Mujie Lan, Weiping Chen, Donghong Wang   +3 more
openaire   +1 more source