الفهرس 
ceramicsOnly 14 pages are availabe for public view
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Abstract
The Natural Clays Contain Sio2, Al2o3, And Other Oxides With Low Abundance These Oxides Are Positive Additives To Zno For Improvement Of Its Nonlinear Propertier. The Ratio Of Differnet Phases In The Natural Clay Is Restricted In Certain Rang, So Dope Zno By Natural Clay Gives Nonlnear Parameters Restricted In Certain Range As Well.