1075
Zr-addition alone revealed a combined alloyed and particle-reinforced composite with 12 % higher hardness , 23 % higher compressive yield strength , and an 11 % decrease in final wear rate compared to LENS™-produced titanium .
 composite, hardness, yield strength, wear, titanium
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 composite, hardness, yield strength, wear, titanium