Effect of elevated temperature irradiation on bipolar devices for space application

ABSTRACT

The application of elevated temperature irradiation for simulating of low dose rate degradation in bipolar devices was considered. The analysis was performed in the framework of the conversion model, which enables to estimate the radiation degradation at any dose rate, temperature and total dose numerically. The possibility of application of the conversion model for the numerical estimation of radiation-induced increase of LM111 input current under low dose rate radiation impact was demonstrated experimentally. A test method using four-stage elevated single temperature irradiation was proposed. The ability of temperature-switching approach for simulation of enhanced low-dose-rate sensitivity was estimated and discussed.     

Influence of Submicron Anthracite Particles on the Conditions of Aerosol Synthesis and the Properties of Carbon Nanotubes

Russian Physics Journal - Properties of single-walled carbon nanotubes (SWCNTs) obtained by the floating catalyst CVD method using ethyl alcohol and coal (anthracite and semi-anthracite) particles...     

Mesoporous TiO2 microspheres with improved efficiency for photooxidation of volatile organic compounds

Research on Chemical Intermediates - Mesoporous hierarchical TiO2 microspheres have been prepared using titanium alkoxide and crown ether as a structure-directing agent in combination with a small...     

Semi-Inverse Solution of a Pure Beam Bending Problem in Gradient Elasticity Theory: The Absence of Scale Effects

The semi-inverse solutions of pure beam bending problems within the three-dimensional formulation of gradient elasticity theory as exact tests for the problem of estimating the efficient bending stiffness of so-called scale-dependent thin beams and plates due to the necessity of modeling sensing devices are presented. It is shown that the solutions within the gradient elasticity theory give classic beam bending stiffnesses and demonstrate the invalidity of the widespread results and estimates obtained in the past 15 years during study of scale effects within the gradient beam theories, according to which the relative bending stiffness grows by a hyperbolic law with decreasing thickness.     

Problems of the deformation of microinhomogeneous viscoelastic solids and the couple-stress theory of viscoelasticity

The problem of determining the mean displacements of a microinhomogeneous viscoelastic body is reduced to a problem of the couple-stress theory of viscoelasticity. A uniqueness theorem is proved for the latter and a variational principle corresponding to the principle of stationarity of potential energy in the theory of elasticity is formulated and proved. The question of the experimental determination of the functions characterizing the properties of a medium with couple stresses is examined.Mekhanika Polimerov, Vol. 3, No. 2, pp. 213–220, 1967