31. However if it is to mature beyond its present state some solidification has to occur. 32. The geometrical shape of the mold cavity has direct effect on progressive and directional solidification . 33. One problem with solidification is that the solid would have to last for thousands of years. 34. With solidification , the solid would have to last thousands of years because plutonium decays slowly. 35. Depending on the physical state of the waste, treatment and solidification processes might be required. 36. Spin-cast glass mirrors need correction because of distortions that arise during and after solidification . 37. Porosity resulting from gas entrapment and solidification shrinkage is a significant problem in spray formed materials. 38. Capped steel starts as rimmed steel but part way through the solidification the ingot is capped. 39. One of the most successful has involved the creation of bioabsorbable metallic glasses via rapid solidification . 40. The Brazilian physicist observed that solidification and melting of many dielectrics are accompanied by charge separation.
