5148
The combination of nickel metal particles and tin alloy allows for higher metal loading at lower melt viscosity , compared to composites of nickel metal particles alone .
 nickel metal, tin alloy, metal, melt, composites, nickel metal
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:
 nickel metal, tin alloy, metal, melt, composites, nickel metal