通过金相法和磁声发射法（MAE）研究了高牌号无取向硅钢脱碳退火时所产生的内氧化层。
The subsurface oxide layers generated during decarburizing annealing of high grade non-oriented silicon steel sheet were studied by metallographical method and magnetoacoustic emission method(MAE).
实现了纳米颗粒状四氧化三铁和纳米层片状羟基磷灰石的复合，四氧化三铁分布均匀，无团聚。
The composition of nano granulated ferroferric oxide and nano lamellar hydroxyapatite is realized, and the ferroferric oxide has uniform distribution and no agglomeration.
固溶工艺的改变对阳极氧化膜的厚度均匀性无显著影响，氧化膜自身的成分结构决定了其膜层厚度的均匀性。
The change of heat treatment had no obvious effect on the uniformity of thickness, which was detected by the composition structure of the films.
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