Surface modifications of ceramic materials using excimer lasers: influence of plasma formation and materials properties on possible industrial applications

1993 ◽  
Author(s):  
K. Schutte ◽  
Hans W. Bergmann ◽  
Emil Schubert ◽  
Robert Queitsch
Keyword(s):  
Surface Modifications ◽  
Ceramic Materials ◽  
Industrial Applications ◽  
Plasma Formation ◽  
Excimer Lasers ◽  
Materials Properties

Status and Standards in ISO/TC206 'Fine Ceramics'

2016 ◽  
Vol 690 ◽  
pp. 57-64
Author(s):  
Shuji Sakaguchi
Keyword(s):  
Ceramic Materials ◽  
Industrial Applications ◽  
Technical Committee ◽  
International Organization ◽  
Wide Field ◽  
Testing Methods ◽  
Fundamental Properties ◽  
Bearing Materials ◽  
Working Groups ◽  
Fine Ceramics

ISO/TC206 'Fine ceramics' is one of a technical committee (TC) in the International Organization for Standardization (ISO), established in 1992. The first plenary meeting for this TC was held in 1994, and the latest meeting was held in August 2015, in Jeju, Republic of Korea. The scope of this TC covers very wide field concerning the ceramic materials for industrial applications, in forms of powders, monoliths, coatings and composites, and in functions of mechanical, thermal, chemical, electrical, magnetic, optical and their combinations. This TC consists of 18 participating member (P-member) countries and 13 observing member (O-member) countries. We already have 81 published standards from this TC. About 30 new work items are under discussion, about 15 items are waiting for starting the discussion, and about 10 items are in the process for revision of the published standards. In this TC, we have 12 working groups. More than twenty years have passed since starting this TC, generally speaking, the categories of the discussed items tends to shift, from some testing methods for fundamental properties (strength, density, thermal properties etc.), to some properties for specified applications, such as ceramic bearing materials, photocatalytic materials and electrical applications.

Industrial Applications of Sol-Gel Technology

2007 ◽  
Vol 124-126 ◽  
pp. 619-622
Author(s):  
Young Jun Hong ◽  
Gi Ra Yi
Keyword(s):  
Sol Gel ◽  
Surface Modifications ◽  
Industrial Applications ◽  
Current Development ◽  
Development Status ◽  
Functional Nanoparticles ◽  
Industrial Materials ◽  
Gel Processing

In present paper, various industrial applications of the sol-gel technology will be briefly introduced. In particular, the current development status and technological issues of sol gel derived functional nanoparticles in electronic and industrial materials will be reviewed. Productions and surface modifications of nanoparticles by sol-gel processing, their incorporations into nanocomposites and final applications are described.

Hard, Wear Resistant Metal Surfaces for Industrial Applications through Laser Powder Deposition

2007 ◽  
Vol 534-536 ◽  
pp. 1537-1540 ◽  
Author(s):  
James Sears ◽  
Aaron Costello
Keyword(s):  
Surface Hardness ◽  
Base Material ◽  
Surface Modifications ◽  
Industrial Applications ◽  
Wear Testing ◽  
Hard Material ◽  
Laser Powder Deposition ◽  
Wear And Corrosion ◽  
Powder Deposition ◽  
Wear And Corrosion Resistance

Most materials produced today are monolithic structures that are heat treated to perform a particular function. Laser Powder Deposition (LPD) is a technology capable of modifying a metallic structure by adding the appropriate material to perform a desired function (e.g., wear and corrosion resistance). LPD offers a unique fabrication technique that allows the use of soft (tough) materials as base structures. Through LPD a hard material can be applied to the base material with little thermal input (minimal dilution and heat-affected-zone {HAZ}), thus providing the function of a heat treatment or other surface modifications (e.g., carburizing, nitriding, thermal spray and electroplating). Several materials (e.g., Stellite 6 &21, 316 SS, 420 SS, M4, Rex 20, Rex 121, 10V, AeroMet 100, CCW+, IN 625 and IN 718) have been deposited on to carbon steel (4140, 4340, 1566, 1018) substrates to provide various functions for a number of industrial applications. These surface modifications have been evaluated through standard wear testing (ASTM G-65), surface hardness (Rc), micro-hardness (vickers), and optical microscopy. The results from these evaluations will be presented along with several industrial application case studies.

scholarly journals The fractal nature approach in ceramics materials and discrete field simulation

2018 ◽  
Vol 50 (3) ◽  
pp. 371-385 ◽  
Author(s):  
Vladan Vuckovic ◽  
Vojislav Mitic ◽  
Ljubisa Kocic ◽  
Vlastimir Nikolic
Keyword(s):  
Real Time ◽  
Ceramic Materials ◽  
Industrial Applications ◽  
Particle Simulation ◽  
Experimental Simulation ◽  
Fractal Nature ◽  
Sintered Ceramic ◽  
Characterization Procedure ◽  
Near Future ◽  
Electrically Charged

In this paper, we present experimental data of static fractals and compare the results with theoretical analysis obtained using dynamic particle simulation. The fractal simulator presented in this manuscript is pioneer work and it is the base of the future concrete and industrial applications. We have examined sintered ceramic samples formed using several different additives, as fabricated using various parameters, sintering temperature and time. SEM analyses were performed on samples as a part of the experimental characterization procedure. Based on microstructures, sets of points have been selected as a primary database input for the theoretical-experimental simulation to model the processes that describe the experiment. For all grain and pore analyses, the fractal nature is recognized as a matter of substantial influence on material characteristics. All of our experimental and theoretical-experimental procedures are based on the construct that reconstruction of the grain and pore fractal nature is of enormous importance for microstructure property prognoses. The method presented here can be used to simplify and simulate, in real time, the interaction of a few thousand electrically charged particles possessing different masses through formulations based on Maxwell?s electromagnetic equations. Particles in simulation interact with alternating (or static) electromagnetic fields and with static ceramics surface at the same time. All values are treated numerically. The fractal simulator consists of two components, a structure fractal generator, and field simulator. The functions for particle motion can be implemented and changed within the program in real time. The algorithm is written in the Delphi programming environment. The main result of this paper describes a quite new approach in the analysis of material microstructure properties towards programming-prognoses of the final properties of ceramic materials using the fractal nature within the fractal field simulator that generates structures, grains, and pores. The new simulator algorithm is developed as the important tool for the realization of the much ambitious project - simulation and realization of the Tesla?s Fountain in ceramics. The concrete results will follow with this project realization in near future.

Development of next generation excimer lasers for industrial applications

2003 ◽  
Author(s):  
Vladimir M. Borisov ◽  
Andrei I. Demin ◽  
Anatoli V. Eltsov ◽  
Oleg B. Khristoforov ◽  
Yuriy B. Kiryukhin ◽  
...  
Keyword(s):  
Industrial Applications ◽  
Excimer Lasers ◽  
Next Generation
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