Bounds on the transport and optical properties of a two‐component composite material

1981 ◽  
Vol 52 (8) ◽  
pp. 5294-5304 ◽  
Author(s):  
G. W. Milton
Keyword(s):  
Composite Material ◽  
Optical Properties ◽  
Two Component

Optical properties of SrS:Cu,Ag two-component phosphors for electroluminescent devices

1999 ◽  
Vol 74 (13) ◽  
pp. 1785-1787 ◽  
Author(s):  
W. Park ◽  
T. C. Jones ◽  
C. J. Summers
Keyword(s):  
Optical Properties ◽  
Electroluminescent Devices ◽  
Two Component

scholarly journals Study of Non Linear Optical Properties of a Chalcone Doped PVA Composite Material

2016 ◽  
Vol 141 ◽  
pp. 83-90 ◽  
Author(s):  
P.C. Rajesh Kumar ◽  
K. Janardhana ◽  
K.M. Balakrishna ◽  
T. Sheela
Keyword(s):  
Composite Material ◽  
Optical Properties ◽  
Non Linear ◽  
Linear Optical Properties ◽  
Linear Optical

Improved bounds on the conductivity of composites by interpolation

1994 ◽  
Vol 444 (1921) ◽  
pp. 363-374 ◽  
Keyword(s):  
Composite Material ◽  
Lower Bounds ◽  
Approximation Method ◽  
Interpolation Method ◽  
Padé Approximation ◽  
Upper Bounds ◽  
Pade Approximation ◽  
Two Component ◽  
Null Lagrangian

Different bounds on the conductivity of a composite material may improve on each other in different conductivity régimes. If so, the question arises of how to efficiently interpolate between the bounds. In this paper I show how to do an interpolation with a two-point Padé approximation method. For bounds on two-component composites the interpolation method is shown to be, in a sense, the best possible. The method is discussed in the context of equiaxed polycrystals where the classic Hashin-Shtrikman bounds and the more recent null-lagrangian bounds, partly improve on each other. Denoting the principal conductivities of the crystallite σ 1 ≼ σ 2 ≼ σ 3 , the method gives improved lower bounds for equiaxed polycrystals which have σ 2 (0.77σ 1 + 0.23σ 3 ) ≽ σ 1 σ 3 . The method also gives improved upper bounds.

Effect of Heat Treatment on Microstructures and Hardness of SiC/Steel Armor Composite

2012 ◽  
Vol 724 ◽  
pp. 431-434
Author(s):  
Jie Dong ◽  
Jie Pan ◽  
Miao Wang ◽  
Cong Rong Zhang ◽  
Wei Liu ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Composite Material ◽  
Iron Silicide ◽  
Heat Treatments ◽  
Isothermal Quenching ◽  
Treatment Situation ◽  
Two Component ◽  
The Matrix

The SiC reinforced ferrous based armor composites were treated with three heat treatments of annealing, isothermal quenching and annealing. The relationships between the treatment processing and the microstructures and hardness of the composite material were investigated. The results revealed that the heat treatment had scarcely any influence on the reinforced component but there appeared iron silicide existing at the interface of the two component, and the hardness of the component changed in three same treatment situation, the highest hardness of the matrix reached 532HB after subjecting to the isothermal quenching at 300°C.

scholarly journals Optical Properties of Composite Structure Based on ZnO Microneedles and Alq3 Thin Film

2021 ◽  
Author(s):  
Ivan Karbovnyk ◽  
B. Sadoviy ◽  
B. Turko ◽  
A. M. Kostruba ◽  
A. Luchechko ◽  
...  
Keyword(s):  
Thin Film ◽  
Composite Material ◽  
Optical Properties ◽  
Energy Transfer ◽  
Laser Beam ◽  
Composite Structure ◽  
Hybrid Composite ◽  
Visible Emission ◽  
Photoluminescence Study ◽  
Uv Emission

Abstract The composite material based on ZnO microneedles and Alq3 thin film has been obtained. The photoluminescence study shows a tenfold enhancement in the band-edge UV emission (390 nm) of ZnO microneedles and 2x enhancement in visible emission of the hybrid composite, when excited by 266 nm laser beam. This enhancement can be explained by the interaction between ZnO and Alq3 molecules and the energy transfer from ZnO to Alq3 molecule.

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