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Transmission electron microscopy and atom-probe tomography display a significant enrichment of oxygen and magnesium near the stable interfaces .
 process characterization: Transmission electron microscopy; process characterization: atom-probe tomography; material: oxygen; material: magnesium
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: Transmission electron microscopy; process characterization: atom-probe tomography; material: oxygen; material: magnesium