Influence of plasma spray parameters on mechanical properties of yttria stabilized zirconia coatings. I: Four point bend test

2000 ◽  
Vol 284 (1-2) ◽  
pp. 29-40 ◽  
Author(s):  
A. Kucuk ◽  
C.C. Berndt ◽  
U. Senturk ◽  
R.S. Lima ◽  
C.R.C. Lima
Keyword(s):  
Mechanical Properties ◽  
Plasma Spray ◽  
Yttria Stabilized Zirconia ◽  
Bend Test ◽  
Spray Parameters ◽  
Stabilized Zirconia ◽  
Point Bend Test ◽  
Point Bend ◽  
Four Point Bend Test

Mechanical Properties of Water Stabilized Plasma Spray-Formed Alumina-13wt% Titania

1996 ◽  
Author(s):  
S.H. Leigh ◽  
C.C. Berndt ◽  
S. Sampath ◽  
H. Herman
Keyword(s):  
Mechanical Properties ◽  
Young’S Modulus ◽  
Plasma Spray ◽  
Young's Modulus ◽  
Bend Test ◽  
Modulus Of Rupture ◽  
Water Stabilized Plasma ◽  
Point Bend Test ◽  
Point Bend ◽  
Four Point Bend Test

Abstract Mechanical properties of water stabilized plasma spray-formed Al2O3-13wt%TiO2 have been investigated by using indentation techniques and a four-point bend test. Young's modulus was determined by four point bend, nano- and Knoop indentation tests. Modulus of rupture was measured by the four-point bend test. The anisotropic behavior as well as the reduced Young's modulus and strength of thermal spray deposits are extensively investigated and can be related to the unique microstructure; i.e., the spheroidal shape of pores, cracks and splats as well as inter-lamellar boundaries. The heat treatment substantially enhanced the mechanical properties and the microstructure becomes more homogeneous and isotropic; that is, the deposits lose their unique nature and become more similar to bulk materials.

Development empirical-intelligent relationship between plasma spray parameters and coating performance of Yttria-Stabilized Zirconia

2014 ◽  
Vol 76 (5-8) ◽  
pp. 1031-1045 ◽  
Author(s):  
Amir Hossein Pakseresht ◽  
Ehsan Ghasali ◽  
Mehrdad Nejati ◽  
Kamyar Shirvanimoghaddam ◽  
Amir Hossein Javadi ◽  
...  
Keyword(s):  
Plasma Spray ◽  
Yttria Stabilized Zirconia ◽  
Spray Parameters ◽  
Stabilized Zirconia ◽  
Coating Performance

The Strength of the Silicon Die in Flip-Chip Assemblies

2003 ◽  
Vol 125 (1) ◽  
pp. 114-119 ◽  
Author(s):  
B. Cotterell ◽  
Z. Chen ◽  
J.-B. Han ◽  
N.-X. Tan
Keyword(s):  
Flip Chip ◽  
Surface Defects ◽  
Bend Test ◽  
Ring Test ◽  
Mechanical Reliability ◽  
Reliability Estimate ◽  
Edge Defects ◽  
Point Bend Test ◽  
Point Bend ◽  
Four Point Bend Test

The mechanical reliability of silicon dies is affected by the defects introduced by surface grinding and edge dicing. The ring-on-ring and the four-point-bend test have been used in this study to separate the distribution in strength for these two types of defect. At low probabilities of failure, it is the “strength” of the edge defects that dominate the reliability. However, if the edges of the die are only lightly stressed compared with the surface, edge defects are unlikely to cause fracture. In this case the use of the four-point-bend test, which is sensitive to both edge and surface defects, will result in an underestimate of the reliability and if only one test is to be performed the ring-on-ring test is preferable to the four-point-bend test. Generally, for a full reliability estimate, the distributions of both types of defect need to be determined.

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