Nano-crystalline 10 and 20 mol% neodymium (Nd) doped ceria powders were prepared by gel-combustion synthesis. The single-phase nature of the nano powder has been confirmed by X-ray diffraction. These sinter-active nano powders resulted in dense products, as the sintered densities were found to be ∼90% of theoretical densities. Ionic conductivity studies were carried out in air, hydrogen and oxygen atmospheres. The samples showed ionic conductivity of 1.3 × 10−2 S cm−1 at 650°C, and the activation energy values obtained in this system were in the range of 0.7-1.0 eV. These studies also revealed that no electronic conduction was observed, as the ionic conductivity values were almost similar in different environments.
- Inderscience Publishers
- Ionic conductivity studies on neodymium doped ceria in different ...
ROV Inspections of Water Towers: Underwater Drone Used to Save Diver’s Time
Mountain West Commercial Diving currently uses their Deep Trekker underwater drone to conduct ROV inspections or potable water towers.Aim to exceed the client’s expectation while adhering the highest standards in industry compliance and safety; that is the goal of Mountain West Commercial Diving (MWCD). Based out of Hazelton, Idaho, MWCD has over 25 years of experience in successfully completing underwater tasks ranging from repairing dams and reservoirs to inspecting and maintaining potable water systems....
Underwater Bridge Inspections – Drones Conducting Remote Evaluations
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When Was the Last Time You Saw a Cabin Built Out of Concrete and Rebar?
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8 Steps for Conducting an EHS Culture Assessment
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Thermal Conductive Plastics for LED Applications
Light emitting diodes (LEDs) are extremely efficient in mitigating heat during operation. However, with manufacturers pushing the limits of LEDs, traditional methods for heat dissipation may not be enough to keep the fixtures going, especially for businesses with complex lighting requirements. Advantages in Heat Dissipation Thermal management has always been the focus of many leading LED manufacturers. Heat generated from the lights must be dissipated properly in order to ensure the fixtures are working to...