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Zirconia-based ceramics can be stabilized in tetragonal or cubic phases depending on the used dopant , its concentration and temperature during the thermal treatments .
 material: ceramics; material: be; engineering feature: tetragonal; process parameter: temperature; manufacturing process: thermal treatments
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:
 material: ceramics; material: be; engineering feature: tetragonal; process parameter: temperature; manufacturing process: thermal treatments