6260
The observation of high friction and wear loss with the test temperature is attributed to the increased intensity of delamination wear and oxidation rate of non-lubricative NiO .
 concept or principle: friction; concept or principle: wear; process parameter: temperature; concept or principle: delamination; manufacturing process: oxidation; material: NiO
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: friction, wear, temperature, delamination, oxidation, NiO 
Answer:
 concept or principle: friction; concept or principle: wear; process parameter: temperature; concept or principle: delamination; manufacturing process: oxidation; material: NiO