Ultra-short pulsed laser manufacturing of yttria stabilized alumina-toughened zirconia dental implants

2019 ◽  
Author(s):  
Norbert Ackerl ◽  
Johannes Gysel ◽  
Maximilian G. Warhanek ◽  
Konrad Wegener
Keyword(s):  
Dental Implants ◽  
Pulsed Laser ◽  
Laser Manufacturing

Pulsed laser-induced micro-and nanosized morphology and composition of titanium dental implants

2002 ◽  
Vol 11 (5) ◽  
pp. 819-824 ◽  
Author(s):  
  Jo b-Fancsaly ◽  
T Divinyi ◽  
  Fazekas ◽  
Cs Daroczi ◽  
A Karacs ◽  
...  
Keyword(s):  
Dental Implants ◽  
Pulsed Laser ◽  
Titanium Dental Implants

scholarly journals Ultrashort Pulsed Laser Surface Patterning of Titanium to Improve Osseointegration of Dental Implants

2019 ◽  
Vol 21 (12) ◽  
pp. 1900639 ◽  
Author(s):  
Christoph Zwahr ◽  
Alexander Welle ◽  
Tobias Weingärtner ◽  
Christiane Heinemann ◽  
Benjamin Kruppke ◽  
...  
Keyword(s):  
Dental Implants ◽  
Pulsed Laser ◽  
Surface Patterning ◽  
Laser Surface ◽  
Ultrashort Pulsed Laser

Paper 14: Pulsed Solid-State Lasers for Engineering Fabrication Processes

1968 ◽  
Vol 183 (4) ◽  
pp. 75-90
Author(s):  
B. F. Scott ◽  
D. L. Hodgett
Keyword(s):  
Solid State ◽  
Liquid Phase ◽  
Manufacturing Systems ◽  
Pulsed Laser ◽  
Damage Mechanism ◽  
Solid State Lasers ◽  
Factors Affecting ◽  
Surface Plane ◽  
Laser Manufacturing ◽  
Output Characteristics

Explosive ejection of liquid phase material can be induced when the output of a pulsed laser is focused into the surface plane of a solid. When the output characteristics of the laser are properly chosen, the damage mechanism can be controlled in such a way that drilling and welding operations, useful in engineering applications, can be performed. This is the theme of the paper which offers, in illustration, descriptions of specific laser manufacturing systems. Factors affecting cost and reliability arc also considered.

scholarly journals Ultra-Short Pulsed Laser Manufacturing and Surface Processing of Microdevices

Engineering ◽  
2018 ◽  
Vol 4 (6) ◽  
pp. 779-786 ◽  
Author(s):  
Yongchao Yu ◽  
Shi Bai ◽  
Shutong Wang ◽  
Anming Hu
Keyword(s):  
Pulsed Laser ◽  
Surface Processing ◽  
Laser Manufacturing

Pulsed Laser Deposition of Bioglass Coatings on Dental Implants

2003 ◽  
Vol 414-415 ◽  
pp. 9-14
Author(s):  
György Czél ◽  
Roberto Teghil ◽  
Dóra Janovszky
Keyword(s):  
Pulsed Laser Deposition ◽  
Dental Implants ◽  
Pulsed Laser ◽  
Laser Deposition

Observations on the growth of YBa2Cu3O7-δ thin films on MgO by pulsed-laser ablation

1991 ◽  
Vol 49 ◽  
pp. 1068-1069
Author(s):  
M. Grant Norton ◽  
C. Barry Carter
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Laser Ablation ◽  
Substrate Surface ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Laser Ablation Process ◽  
Deposition Parameters

Pulsed-laser ablation has been widely used to produce high-quality thin films of YBa2Cu3O7-δ on a range of substrate materials. The nonequilibrium nature of the process allows congruent deposition of oxides with complex stoichiometrics. In the high power density regime produced by the UV excimer lasers the ablated species includes a mixture of neutral atoms, molecules and ions. All these species play an important role in thin-film deposition. However, changes in the deposition parameters have been shown to affect the microstructure of thin YBa2Cu3O7-δ films. The formation of metastable configurations is possible because at the low substrate temperatures used, only shortrange rearrangement on the substrate surface can occur. The parameters associated directly with the laser ablation process, those determining the nature of the process, e g. thermal or nonthermal volatilization, have been classified as ‘primary parameters'. Other parameters may also affect the microstructure of the thin film. In this paper, the effects of these ‘secondary parameters' on the microstructure of YBa2Cu3O7-δ films will be discussed. Examples of 'secondary parameters' include the substrate temperature and the oxygen partial pressure during deposition.

Microanalysis of silicate glass films grown on α-Al2O3 by pulsed-laser deposition

1993 ◽  
Vol 51 ◽  
pp. 438-439
Author(s):  
Michael P. Mallamaci ◽  
James Bentley ◽  
C. Barry Carter
Keyword(s):  
Liquid Phase ◽  
Single Crystal ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Ceramic Materials ◽  
Laser Deposition ◽  
Triple Junctions ◽  
Ion Milling ◽  
Multicomponent Oxides ◽  
Glass Films

Glass-oxide interfaces play important roles in developing the properties of liquid-phase sintered ceramics and glass-ceramic materials. Deposition of glasses in thin-film form on oxide substrates is a potential way to determine the properties of such interfaces directly. Pulsed-laser deposition (PLD) has been successful in growing stoichiometric thin films of multicomponent oxides. Since traditional glasses are multicomponent oxides, there is the potential for PLD to provide a unique method for growing amorphous coatings on ceramics with precise control of the glass composition. Deposition of an anorthite-based (CaAl2Si2O8) glass on single-crystal α-Al2O3 was chosen as a model system to explore the feasibility of PLD for growing glass layers, since anorthite-based glass films are commonly found in the grain boundaries and triple junctions of liquid-phase sintered α-Al2O3 ceramics.Single-crystal (0001) α-Al2O3 substrates in pre-thinned form were used for film depositions. Prethinned substrates were prepared by polishing the side intended for deposition, then dimpling and polishing the opposite side, and finally ion-milling to perforation.

TEM sample preparation of wear-tested room-temperature pulsed-laser-deposited thin films of MoS2 by ultramicrotomy

1993 ◽  
Vol 51 ◽  
pp. 1118-1119
Author(s):  
Pamela F. Lloyd ◽  
Scott D. Walck
Keyword(s):  
Thin Films ◽  
Sample Preparation ◽  
Room Temperature ◽  
High Vacuum ◽  
Pulsed Laser ◽  
Ultra High Vacuum ◽  
Wear Testing ◽  
Preparation Technique ◽  
Cross Sectional ◽  
Aerospace Applications

Pulsed laser deposition (PLD) is a novel technique for the deposition of tribological thin films. MoS2 is the archetypical solid lubricant material for aerospace applications. It provides a low coefficient of friction from cryogenic temperatures to about 350°C and can be used in ultra high vacuum environments. The TEM is ideally suited for studying the microstructural and tribo-chemical changes that occur during wear. The normal cross sectional TEM sample preparation method does not work well because the material’s lubricity causes the sandwich to separate. Walck et al. deposited MoS2 through a mesh mask which gave suitable results for as-deposited films, but the discontinuous nature of the film is unsuitable for wear-testing. To investigate wear-tested, room temperature (RT) PLD MoS2 films, the sample preparation technique of Heuer and Howitt was adapted.Two 300 run thick films were deposited on single crystal NaCl substrates. One was wear-tested on a ball-on-disk tribometer using a 30 gm load at 150 rpm for one minute, and subsequently coated with a heavy layer of evaporated gold.

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