7012
The results of this study highlight that oxidation and issues presented by spatter particles dissimilar from the virgin material are unavoidable and greater consideration is needed for the generation and effect of spatter on part and powder quality .
 oxidation, spatter, particles, material, spatter, powder
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:
 oxidation, spatter, particles, material, spatter, powder