2310
The aB-printed magnets are then coated with two types of polymers , both of which improve the thermal stability as revealed by flux aging loss measurements .
 magnets, coated, polymers, thermal stability, as, flux
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 magnets, coated, polymers, thermal stability, as, flux