1163
The maximum tensile joint strength reached 240 MPa , 80 % of that of the aluminum base metal , and the lower tensile strength of the other joints was caused by insufficient IMC layer or a porosity defect .
 machanical property: tensile; concept or principle: joint; concept or principle: MPa; material: aluminum; material: metal; machanical property: tensile strength; process parameter: layer; machanical property: porosity; concept or principle: defect
Please list all entity words in the text that fit the category.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} 
Answer:
 machanical property: tensile; concept or principle: joint; concept or principle: MPa; material: aluminum; material: metal; machanical property: tensile strength; process parameter: layer; machanical property: porosity; concept or principle: defect