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The effects of volume fractions of each phase were investigated on the microstructural arrangement , porosity , microhardness , residual stresses , and mechanical strength of the deposited materials .
 process parameter: volume fractions; concept or principle: phase; concept or principle: microstructural; machanical property: porosity; concept or principle: microhardness; machanical property: residual stresses; machanical property: mechanical strength; concept or principle: materials
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: volume fractions, phase, microstructural, porosity, microhardness, residual stresses, mechanical strength, materials 
Answer:
 process parameter: volume fractions; concept or principle: phase; concept or principle: microstructural; machanical property: porosity; concept or principle: microhardness; machanical property: residual stresses; machanical property: mechanical strength; concept or principle: materials