Preparation of Epoxy/Organoclay Nanocomposites for Electrical Insulating Material Using an Ultrasonicator

Abstract

In this paper, we discuss design considerations for an n-channel metal-oxide-semiconductor field-effect transistor (MOSFET) with a lateral asymmetric channel (LAC) doping profile. We employed a 0.35 µm standard complementary MOSFET process for fabrication of the devices. The gates to the LAC doping overlap lengths were 0.5, 1.0, and 1.5 µm. The drain current (I ON), transconductance (g m), substrate current (I SUB), drain to source leakage current (I OFF), and channel-hot-electron (CHE) reliability characteristics were taken into account for optimum device design. The LAC devices with shorter overlap lengths demonstrated improved I ON and g m characteristics. On the other hand, the LAC devices with longer overlap lengths demonstrated improved CHE degradation and I OFF characteristics.

Effect of Ambient Temperature on Insulation Lifetime of Inverter Surge Resistant Enameled Wire Prepared with Organic/Inorganic Hybrid Nanocomposite

“…And The B10 value referred to the electrical lifetime at which 10% would fail (90% would survive) under a given test condition. [15]. The scale parameter of HW was 981.6 sec (16.4 min), which is 19.4 times higher value than EI/AIW at, 81 sec (0.8 min).…”

Mechanical and Electrical Properties of Cycloaliphatic Epoxy/Silica Systems for Electrical Insulators for Outdoor Applications

“…Here, the shape parameter could be obtained from the slope, meaning the data distribution, and the scale parameter represented the tensile strength, by which 63.2% of the cumulative probability was expected to break. The B10 value referred to the electrical breakdown strength at which 10% would break (90% would survive) under an applied high voltage [7]. The scale parameter increased until 60 wt% silica and decreased after that.…”

“…The B10 value for epoxy/silica (55 wt%) was 76.5 MPa and that for epoxy/silica (60 wt%) was 90.6 MPa, 118% higher. The B10 value refers to the tensile strength at which 10% would break (90% would survive) under a tensile test [7]. When microsilica was added to an epoxy matrix, the silica can anchor the epoxy chains by covalent bonding and hydrogen bonding so that the mobility of the epoxy chains became disturbed; thus, the tensile strength increases.…”

“…The secondary maximum current was 1,000 mA with a system of 400 kVA. The data for voltage, current, and frequency were collected every 5 s. All data were estimated by Weibull statistical analysis [7].…”

Effect of Silicone-modified Microsilica Content on Electrical and Mechanical Properties of Cycloaliphatic Epoxy/Microsilica System

“…The effect of humidity and pollutants can be addressed by reducing the wettability of the surface or increasing the repellency to moisture and humidity by imparting hydrophobicity. In order to increase hydrophobicity, water repellents such as silicone oils are introduced to epoxy system [7,8].…”