The sulfur content of the impurity is 1% or less. The total sodium component of the flux is 20 to 40%. [Reference numerals] (AA) Temperature, C; (BB) Softening point; (CC) Melting point; (DD) Pour pointKEUM, CHANG HUNSEO, JEONG DO...
As one of the β phase stabilizers, Nb element has the lower melting point (2477 °C) and less melting absorption energy than both Ta and Mo elements, endowing Ti-Nb alloys a better workability [4,5]. On the other hand, the excellent ductility of Ti-Nb alloys prevents the initiation ...
Reaction: 1) 1st EQP: H2SO4 + Na2C03 → NaHCO3 + NaHSO4 2) Heating 3) 2nd EQP NaHCO3 + NaHSO4 →H2O + CO2 + Na2SO4 It is observed that for higher concentration without heating the solution after the first equivalence point, carbon dioxide was evolved and second equivalence point ...