Porosity and volume changes of clay fire bricks at furnace temperatures /...references.General considerations regarding the testing of fire bricks -- Measurement of refractoriness -- Temperature-porosity changes as an indication of load-carrying ability -- Object of present investigation -- Description of fire-brick tests already used -- Chemical analysis -- Softening point -- Load test -- Cold crushing test -- Ball test -- Method of study of porosity and volume changes in connection with load tests and softening points -- Determination of porosity and volume changes -- Method of making...
Colloidal polystyrene-carbon nanotubes as water-based lubricant additive... Four-ball test results indicate that both the load-carrying capacity and anti-wear of the colloidal PSt-CNTs are much superior to those colloidal PSt owing to the additive reinforced...
High temperature heat exchanger project: quarterly progress report october 1, 2006 through december 31, 2006...completed.The finite element calculations of the “Ball on Three Ball Test” for ceramic material for the purpose of selecting the appropriate specimen thickness for future experimental testing was performed for plate thicknesses ranging from...
Twist compression and four-ball test device redesign... Two industrial tests that are used to study lubricants in various environments and scenarios are the Four-Ball Test and the Twist Compression Test....
