Mechanical properties of pulsed laser-deposited hydroxyapatite thin film implanted at high energy with N+ and Ar+ ions. Part I: nanoindentation with spherical tipped indenter

2004 ◽  
Vol 216 ◽  
pp. 269-274 ◽  
Author(s):  
H. Pelletier ◽  
V. Nelea ◽  
P. Mille ◽  
D. Muller
Keyword(s):  
Thin Film ◽  
Mechanical Properties ◽  
Pulsed Laser ◽  
High Energy

scholarly journals High energy storage performance in lead-free BiFeO3-BaTiO3 ferroelectric thin film fabricated by pulsed laser deposition

AIP Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 085005 ◽  
Author(s):  
Yuqing Hu ◽  
Qingxiu Xie ◽  
Ruihong Liang ◽  
Xiangyong Zhao ◽  
Zhiyong Zhou ◽  
...  
Keyword(s):  
Thin Film ◽  
Energy Storage ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Ferroelectric Thin Film ◽  
High Energy ◽  
Laser Deposition ◽  
Lead Free ◽  
Storage Performance ◽  
High Energy Storage

Mechanical properties improvement of pulsed laser-deposited hydroxyapatite thin films by high energy ion-beam implantation

2002 ◽  
Vol 186 (1-4) ◽  
pp. 483-489 ◽  
Author(s):  
V Nelea ◽  
H Pelletier ◽  
D Müller ◽  
N Broll ◽  
P Mille ◽  
...  
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Ion Beam ◽  
Pulsed Laser ◽  
High Energy ◽  
Ion Beam Implantation

High-energy femtosecond pulsed laser micromachining of thin film deposited silicon in self-focused air medium

2002 ◽  
Vol 14 (4) ◽  
pp. 221-229 ◽  
Author(s):  
Yuanyuan Dong ◽  
Pal Molian ◽  
Christian Zorman ◽  
Mehran Mehregany
Keyword(s):  
Thin Film ◽  
Pulsed Laser ◽  
Laser Micromachining ◽  
High Energy ◽  
Air Medium ◽  
Femtosecond Pulsed Laser

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.

Microstructural and fractographic characterization of B4C-Al cermets tested under dynamic and static loading

1989 ◽  
Vol 47 ◽  
pp. 562-563
Author(s):  
Gyeung Ho Kim ◽  
Mehmet Sarikaya ◽  
D. L. Milius ◽  
I. A. Aksay
Keyword(s):  
Thin Film ◽  
Mechanical Properties ◽  
Fracture Toughness ◽  
Static Loading ◽  
Carbon Deposition ◽  
Full Density ◽  
Unique Combination ◽  
Strong Component ◽  
Reaction Products

Cermets are designed to optimize the mechanical properties of ceramics (hard and strong component) and metals (ductile and tough component) into one system. However, the processing of such systems is a problem in obtaining fully dense composite without deleterious reaction products. In the lightweight (2.65 g/cc) B4C-Al cermet, many of the processing problems have been circumvented. It is now possible to process fully dense B4C-Al cermet with tailored microstructures and achieve unique combination of mechanical properties (fracture strength of over 600 MPa and fracture toughness of 12 MPa-m1/2). In this paper, microstructure and fractography of B4C-Al cermets, tested under dynamic and static loading conditions, are described.The cermet is prepared by infiltration of Al at 1150°C into partially sintered B4C compact under vacuum to full density. Fracture surface replicas were prepared by using cellulose acetate and thin-film carbon deposition. Samples were observed with a Philips 3000 at 100 kV.

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