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Tensile testing and microstructure characterization were conducted ; it was established that HIP eliminated the brittle Z-direction fracture and improved the strength and ductility of the Z-direction specimens .
 process characterization: Tensile testing; concept or principle: microstructure; manufacturing process: HIP; machanical property: brittle; concept or principle: fracture; machanical property: strength; machanical property: ductility; engineering feature: Z-direction
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 testing; concept or principle: microstructure; manufacturing process: HIP; machanical property: brittle; concept or principle: fracture; machanical property: strength; machanical property: ductility; engineering feature: Z-direction