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The feasibility of using thermal based additive manufacturing with multi-component ceramic materials has therefore been established , which represents a potential solution to off-world bulk structure manufacture for future human space exploration .
 feasibility, additive manufacturing, ceramic materials, solution, structure manufacture
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:
 feasibility, additive manufacturing, ceramic materials, solution, structure manufacture