Characterization of mechanical properties and microstructure of high-energy dual ion implanted metals

2001 ◽  
Vol 175-177 ◽  
pp. 647-651 ◽  
Author(s):  
S Taniguchi ◽  
A Kitahara ◽  
S Wakayama ◽  
E Eriguchi ◽  
N Suyama
Keyword(s):  
Mechanical Properties ◽  
High Energy ◽  
Ion Implanted

scholarly journals Nano/micro-mechanical and tribological characterization of Ar, C, N, and Ne ion-implanted Si

2010 ◽  
Vol 25 (5) ◽  
pp. 880-889 ◽  
Author(s):  
Zhi-Hui Xu ◽  
Young-Bae Park ◽  
Xiaodong Li
Keyword(s):  
Mechanical Properties ◽  
Tribological Properties ◽  
Crystalline Silicon ◽  
Semiconductor Industry ◽  
Damage Mechanism ◽  
Mechanical And Tribological Properties ◽  
Tribological Characterization ◽  
The Relationship ◽  
Ion Implanted

Ion implantation has been widely used to improve the mechanical and tribological properties of single crystalline silicon, an essential material for the semiconductor industry. In this study, the effects of four different ion implantations, Ar, C, N, and Ne ions, on the mechanical and tribological properties of single crystal Si were investigated at both the nanoscale and the microscale. Nanoindentation and microindentation were used to measure the mechanical properties and fracture toughness of ion-implanted Si. Nano and micro scratch and wear tests were performed to study the tribological behaviors of different ion-implanted Si. The relationship between the mechanical properties and tribological behavior and the damage mechanism of scratch and wear were also discussed.

Optical Technique for Characterization of High Energy Ion Implanted Materials

1992 ◽  
Vol 268 ◽  
Author(s):  
Gustavo E Aizenberg ◽  
Pieter L Swart ◽  
Beatrys M Lacquet
Keyword(s):  
Refractive Index ◽  
Digital Signal ◽  
Amorphous Layer ◽  
High Energy ◽  
Optical Technique ◽  
Concentration Peak ◽  
Non Destructive ◽  
Reflectance Data ◽  
Ion Implanted

ABSTRACTA new method for the characterization of high energy ion-implanted materials has been developed. The refractive index and thickness of the amorphous layer produced by ion-implantation as well as the recrystallized layer formed by annealing of the ionimplanted samples can be determined by means of this non-destructive optical technique.For frequencies where the carriers do not respond, the measured reflectance is bilinear transformed, and further digital signal processing yields information about thickness and refractive index of the abovementioned layers. When working at optical frequencies where the carriers can respond to the electromagnetic field the physical position of the peak concentration follows directly from the processed reflectance data. Simulated and experimental data have been analyzed. The position of the boundaries between the amorphous, recrystallized and substrate zones, as well as the position of the carrier concentration peak can be determined for various steps of annealing. The algorithm has the advantage of being simple and time efficient.

scholarly journals Characterization of high-energy heavy-ion implanted InP crystals by a variety of techniques

Vacuum ◽  
1989 ◽  
Vol 39 (2-4) ◽  
pp. 177-182 ◽  
Author(s):  
Fulin Xiong ◽  
CW Nieh ◽  
TA Tombrello ◽  
DN Jamieson ◽  
T Vreeland
Keyword(s):  
Heavy Ion ◽  
High Energy ◽  
Ion Implanted

Thermal wave characterization of silicon which had been high energy ion implanted and furnace annealed

1989 ◽  
Vol 2 (1-3) ◽  
pp. 207-210 ◽  
Author(s):  
G.M. Crean ◽  
M.G. Somekh ◽  
S.J. Sheard ◽  
C.W. See
Keyword(s):  
Thermal Wave ◽  
High Energy ◽  
Ion Implanted

scholarly journals Characterization of the recovery of mechanical properties of ion-implanted diamond after thermal annealing

2016 ◽  
Vol 63 ◽  
pp. 75-79 ◽  
Author(s):  
M. Mohr ◽  
F. Picollo ◽  
A. Battiato ◽  
E. Bernardi ◽  
J. Forneris ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Annealing ◽  
Ion Implanted

Synthesis and Mechanical Properties of Nano-Scale NiAl and NiAl/Al2O3 Composites

1994 ◽  
Vol 350 ◽  
Author(s):  
Timothy R. Smith
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
High Energy ◽  
Alloyed Powder ◽  
High Energy Milling ◽  
Nano Scale ◽  
Sinter Forging

AbstractThis work reports on the synthesis, characterization and preliminary mechanical properties of nanocrystalline NiAl/Al2O3 composite materials. Nano-scale crystallites of NiAl were formed by high energy milling of pre-alloyed powder with and without Al2O3 under an Ar atmosphere. Consolidation of the nano-scale powders was done by sinter-forging at < 0.4 Tm in air. Characterization of the powders and consolidated microstructures and hardness data are reported.

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.

Characterization of interfaces in CVD-coated nicalon fiber-reinforced SiC

1989 ◽  
Vol 47 ◽  
pp. 556-557
Author(s):  
K.L. More ◽  
R.A. Lowden
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Chemical Vapor ◽  
Chemical Vapor Infiltration ◽  
Frictional Stress ◽  
Fiber Reinforced ◽  
Pull Out ◽  
Carbon Coated ◽  
Fiber Matrix

The mechanical properties of fiber-reinforced composites are directly related to the nature of the fiber-matrix bond. Fracture toughness is improved when debonding, crack deflection, and fiber pull-out occur which in turn depend on a weak interfacial bond. The interfacial characteristics of fiber-reinforced ceramics can be altered by applying thin coatings to the fibers prior to composite fabrication. In a previous study, Lowden and co-workers coated Nicalon fibers (Nippon Carbon Company) with silicon and carbon prior to chemical vapor infiltration with SiC and determined the influence of interfacial frictional stress on fracture phenomena. They found that the silicon-coated Nicalon fiber-reinforced SiC had low flexure strengths and brittle fracture whereas the composites containing carbon coated fibers exhibited improved strength and fracture toughness. In this study, coatings of boron or BN were applied to Nicalon fibers via chemical vapor deposition (CVD) and the fibers were subsequently incorporated in a SiC matrix. The fiber-matrix interfaces were characterized using transmission and scanning electron microscopy (TEM and SEM). Mechanical properties were determined and compared to those obtained for uncoated Nicalon fiber-reinforced SiC.

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