RELATIVE PERMITTIVITY MEASUREMENTS WERE MADE ON BINARY MIXTURE OF (1-HEXANOL+2-BUTANONE) FOR VARIOUS CONCENTRATIONS AT T=298.2K.THE STATIC Dielectric CONSTANT (RELATIVE PERMITTIVITY) OF MATERIALS IS AN INTRINSIC PROPERTY, WHICH CAN PLAY AN IMPORTANT ROLE IN THE SOLUTEION PROPERTIES. MEASUREMENT OF Dielectric CONSTANT HAS BEEN SHOWN TO BE A USEFUL TECHNIQUE IN CHARACTERIZING MOLECULAR STRUCTURE, SOLUTE–SOLUTE, AND SOLVENT–SOLUTE INTERACTIONS IN SOLUTION. SIGNIFICANT INVESTIGATION HAS BEEN CARRIED OUT IN RECENT YEARS ON THE Dielectric MEASUREMENTS OF POLAR SOLUTIONS WITH VARIOUS MOLECULAR STRUCTURE AND DIFFERENT FUNCTIONAL GROUPS. Dielectric STUDIES ON THE BINARY MIXTURES ARE IMPORTANT FOR UNDERSTANDING THE INTERMOLECULAR INTERACTIONS IN THE MIXTURE DUE TO THE DIPOLE–DIPOLE INTERACTIONS AND HYDROGEN BONDING. IN THIS WORK, THE KIRKWOOD CORRELATION FACTOR, THE BRUGGEMAN Dielectric FACTOR AND THE EXCESS PERMITTIVITY WERE CALCULATED. THE ALIPHATICALCOHOLS ARE EXCELLENT H-BOND DONORS/ACCEPTORS, AND THEREFORE, ARE STRONGLY ASSOCIATED THROUGH INTERMOLECULAR H-BONDING. ON THE OTHER HAND, KETONES ARE AN IMPORTANT CLASS OF INDUSTRIAL CHEMICALS WITH MANY SCIENTIFIC AND INDUSTRIAL APPLICATIONS.THESE COMPOUNDS WITH A CARBONYL GROUP (C=O) ARE STRONGLY HYDROGEN-BOND ACCEPTORS.THE LOWER MOLAR MASS ALIPHATIC KETONES ARE STABLE, COLOURLESS LIQUIDS AND GENERALLY HAVE A PLEASANT, SLIGHTLY AROMATIC ODOUR. ONE OF THE MOST IMPORTANT ALIPHATIC KETONES IS 2-BUTANONE (NAMELY METHYL ETHYL KETONE, MEK), WHICH IS THE SECOND MOST IMPORTANT COMMERCIALLY PRODUCED KETONE AFTER ACETONE.

THE STATIC Dielectric CONSTANT (RELATIVE PERMITTIVITY) OF MATERIALS IS AN INTRINSIC PROPERTY, WHICH CAN PLAY AN IMPORTANT ROLE IN THE SOLUTION PROPERTIES [1,2] ...

ZINC OXIDE VARISTORS ARE SMART ELECTRO CERAMIC DEVICES, WHOSE PRIMARY FUNCTION IS TO PROTECT AN ELECTRICAL SYSTEM BY SENSING AND LIMITING TRANSIENT SURGES AND TO DO SO REPEATEDLY WITHOUT BEING DESTROYED. THESE VARISTORS ARE STRONGLY NON-LINEAR RESISTORS, USED AS SURGE ARRESTERS IN POWER TRANSMISSION AND FOR THE PROTECTION OF ELECTRONIC DEVICES. METAL OXIDE VARISTORS HAVE A Dielectric COATING ON LATERAL SURFACE IN THE FORM OF THERMO SET, GLAZE OR OTHER CERAMIC COATINGS. IN CONVENTIONAL LEAD OXIDE BASE GLAZES THAT ARE APPLIED ON VARISTOR BODY AT TEMPERATURE BETWEEN 500-700OC, IN SPITE OF LOW SINTERING TEMPERATURE, TWO DISCRETE THERMAL CYCLES ARE NEEDED, ONE FOR SINTERING OF ZNO-BASED BODY AND THE OTHER FOR BAKING OF THE LATERAL COATING. ON THE OTHER HAND, SINCE THE LEAD OXIDE BASE COMPOUNDS ARE TOXIC AND ALSO BECAUSE OF FRITTING PROBLEMS, COMPLETE OR PARTIAL REPLACEMENT OF LEAD OXIDE FROM COATING HAVE EVER BEEN INTENDED. IN THIS PAPER, High TEMPERATURE COATINGS ON THE BASIS OF SIO2 AND FE2O3 ARE PRESENTED. APPLICATION OF THESE COATINGS ON MOLDED MATERIAL, PROVIDES THE POSSIBILITY OF SIMULTANEOUS BAKING AND PROCESS OF PRODUCT THAT LEADS IN TIME AND ENERGY SAVING. ADDITION OF BI2O3, B2O3 AND AL2O3 IN THE COMPOSITION OF THE COATING, AND ITS INFLUENCE ON SOME PHYSICAL AND ELECTRICAL PROPERTIES, ARE DISCUSSED IN THIS PAPER THAT SHOWS THE IMPROVEMENT OF THESE PROPERTIES ESPECIALLY, Dielectric STRENGTH IN ALL OF THE PREPARED COATINGS. PHASE AND MICROSTRUCTURE INVESTIGATION OF THE COATINGS WAS DONE BY X-RAY DIFFRACTOMETERY AND SCANNING ELECTRON MICROSCOPY.

RELATIVE PERMITTIVITY OR STATIC Dielectric CONSTANT IS A MACROSCOPIC AND INTRINSIC PROPERTY THAT PROVIDES IMPORTANT INFORMATION ABOUT MOLECULAR ASSOCIATIONS AND GEOMETRICAL STRUCTURE OF MOLECULES [1,2] ...