810
Tensile test results revealed that Laves and δ phases lead to low ductility when present in a precipitation-hardened matrix .
 process characterization: Tensile test; concept or principle: Laves; material: lead; machanical property: ductility
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:
 process characterization: Tensile test; concept or principle: Laves; material: lead; machanical property: ductility