21. Sintering can be considered to proceed in three stages.22. The strip is then sintered and subjected to another rolling and further sintering . 23. An inert gas is routinely used to prevent oxidation during selective laser sintering . 24. This gel holds the filler powder together in something approximating a sintering greenform. 25. The advantages of freeze-geleation over sintering are essentially cost-based. 26. Molybdenum disilicide and MoSi 2-based materials are usually made by sintering . 27. Longer sintering time generally reduces risk of excavation collapse. 28. There are numerous possible refinements of the sintering process. 29. These methods involve pumping air into a suspended ceramic before setting and sintering . 30. Sintering is a common practice used widely with both metals and ceramic materials.
