The ceramic ferrule

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The present invention relates to a ceramic material preparation technology. The present invention also relates to optical communication technology, especially to a ceramic ferrule made of a complex Zircornium oxide base material which blends with a rare element, such as Yuttrium, Cerium, etc. The ceramic ferrule made of a complex Zircornium oxide base material which blends with a rare element, such as Yuttrium, Cerium, etc. provides significant features, such as increasing the phase transition resistivity of the Zircornium oxide material, having a precise construction, effectively enhancing reliability of products and having high quality connection, good aging resistance and good environment adaptability. A movable connector of field-assembled optical fiber which adapts the present ceramic ferrule not only achieves co-axial joint of the optical fibers better surface smoothness as compared with plastic ceramic ferrule, but also overcomes the problem of scratching easily incurred during connection between plastic materials. The present invention has characters of good aging resistance, low insertion lose on jointing of optical fibers, high return loss and good connection quality.