The Modification of Sodium Polyacrylate Water Solution Cooling Properties by AL₂O₃

Table 3

Characteristic cooling speed values.

Quenching medium	V700 [°C/s]	V550 [°C/s]	V330 [°C/s]	Vmax [°C/s]	Tmax [°C]
Distilled water	535	525	180	664	563
10% water solution of sodium polyacrylate	60	50	90	98	643
10% water solution of sodium polyacrylate with Al2O3 nanoparticles	23	90	60	111	408