Fracture Toughness and Fatigue of Kaolin - Based Refractories: Effect of Plant Derived Organic Binders

Citation:
Njogu MS, Nyongesa FW, Aduda BO. "Fracture Toughness and Fatigue of Kaolin - Based Refractories: Effect of Plant Derived Organic Binders.". In: 4th Africa Materials Research Society (AMRS) International Conference. Dar es salaam, Tanzania; 2007.

Date Presented:

9th -15th

Abstract:

The fracture characteristics of a kaolin – based refractories prepared using a plant derived binder (from okra) have been investigated. Plasticization with the binder improved the MOR of fired samples by 79.4%, while the fracture toughness increased by 44.3%. Both the Weibull modulus m and the slow crack growth propagation parameter n, also improved in comparison to those plasticized with plain water (no binder). Thus the use of organic binders enhances the reliability and service life of kaolin refractories used in thermally fluctuating environments.

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