3615
The model also handles the change in thermo-physical properties caused by the composition mixture between the powder and substrate materials in the melt pool .
 model, properties, composition, powder, substrate materials, melt pool
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:
 model, properties, composition, powder, substrate materials, melt pool