“…In view of chemical environments, the properties of nanopowders are affected by many factors, including (1) solvents [13,14], (2) precipitants [8], (3) dispersants [15], (4) calcined temperatures [16,17], (5) aging conditions [18,19], and (6) pH values [20]. Transparent Nd:YAG ceramics of excellent performance could be obtained from nano-powders synthesized only if all these factors are precisely controlled.…”