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The main result of the investigation is a demonstration of the technological feasibility to decrease the number and size of defects in complex LPBF-manufactured Alloy 800H constructions without changes in phase composition at high temperatures .
 concept or principle: feasibility; concept or principle: defects; material: Alloy; concept or principle: phase composition; process parameter: temperatures
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: 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} 
 Entities: feasibility, defects, Alloy, phase composition, temperatures 
Answer:
 concept or principle: feasibility; concept or principle: defects; material: Alloy; concept or principle: phase composition; process parameter: temperatures