Abstract Glass fiber of high modulus of elasticity and tensile strength, belonging to the class of materials known as ''''ceramic glass.'''' It is formed of a vitreous matrix containing a plurality of inclusions, at least a part of which is in a crystalline state dispersed in the matrix. This fiber is obtained by a process which consists in forming a mixture of inorganic compounds corresponding to the composition of a glass which is decomposable into two vitreous phases. This mixture is melted and homogenized. A fiber is drawn from the homogeneous mass thus obtained, and this fiber is subjected to a heat treatment which makes it possible to form vitreous inclusions therein and then causing the growth of a crystalline phase in these inclusions. This fiber can be used as reinforcement element for various materials or articles, for instance parts of synthetic organic resins.
PROCESS OF MANUFACTURING A GLASS FIBER COMPRISING: FORMING A MIXTURE OF INORGANIC COMPOUNDS IN PROPORTIONS CORRESPONDING TO THE COMPOSITION OF A GLASS HAVING, ABOVE A TEMPERATURE TA WHICH IS INCLUDED WITHIN THE RANGE OF TEMPERATURES WITHIN WHICH THE VISCOSITY OF THE GLASS HAS A VALUE SUITABLE FOR THE DRAWING OF FIBERS, A RANGE OF EXISTENSE OF A SINGLE VITREOUS PHASE WHICH IS DECOMPOSABLE BY COOLING BELOW TD, INTO TWO VITREOUS PHASES, SAID DECOMPOSITION MANIFESTING ITSELF BY THE FORMATION OF VITREOUS INCLUSIONS DISPERSED IN A VITREOUS MATRIX, THE COMPOSITION OF SAID GLASS BEING SELECTED FROM A SYSTEM COMPRISING AT LEAST ONE RANGE OF EXISTENCE OF A CRYSTALLINE PHASE CAPABLE OF FORMING IN SAID VITREOUS INCLUSIONS BY HEATING WITHIN THE TEMPERATURE RANGE BELOW TD, MELTING SAID MIXTURE AND THEN BRINGING IT TO A TEMPERATURE ABOVE TD AND MAINTAINING IT AT SUCH A TEMPERATURE AT LEAST FOR A TIME SUFFICIENT TO OBTAIN ITS HOMOGENIZATION, THEN MAINTAINING IT AT A VALUE, STILL GREATER THAN TD, CORRESPONDING TO THAT AT WHICH THE VISCOSITY IS SUITABLE FOR THE DRAWING OF FIBERS, CONTINUOUSLY STRETCHING AT LEAST ONE FIBER FROM THE HOMOGENEOUS MASS THUS OBTAINED, REGULATING THE TEMPERATURE OF THIS MASS AND THE SPEED OF DRAWING OFTHE
Claim 2
Dependent Claim
199 words
PROCESS OF MANUFACTURING A GLASS FIBER COMPRISING: FORMING A MIXTURE OF INORGANIC COMPOUNDS IN PROPORTIONS CORRESPONDING TO THE COMPOSITION OF A GLASS HAVING, ABOVE A TEMPERATURE TA WHICH IS INCLUDED WITHIN THE RANGE OF TEMPERATURES WITHIN WHICH THE VISCOSITY OF THE GLASS HAS A VALUE SUITABLE FOR THE DRAWING OF FIBERS, A RANGE OF EXISTENSE OF A SINGLE VITREOUS PHASE WHICH IS DECOMPOSABLE BY COOLING BELOW TD, INTO TWO VITREOUS PHASES, SAID DECOMPOSITION MANIFESTING ITSELF BY THE FORMATION OF VITREOUS INCLUSIONS DISPERSED IN A VITREOUS MATRIX, THE COMPOSITION OF SAID GLASS BEING SELECTED FROM A SYSTEM COMPRISING AT LEAST ONE RANGE OF EXISTENCE OF A CRYSTALLINE PHASE CAPABLE OF FORMING IN SAID VITREOUS INCLUSIONS BY HEATING WITHIN THE TEMPERATURE RANGE BELOW TD, MELTING SAID MIXTURE AND THEN BRINGING IT TO A TEMPERATURE ABOVE TD AND MAINTAINING IT AT SUCH A TEMPERATURE AT LEAST FOR A TIME SUFFICIENT TO OBTAIN ITS HOMOGENIZATION, THEN MAINTAINING IT AT A VALUE, STILL GREATER THAN TD, CORRESPONDING TO THAT AT WHICH THE VISCOSITY IS SUITABLE FOR THE DRAWING OF FIBERS, CONTINUOUSLY STRETCHING AT LEAST ONE FIBER FROM THE HOMOGENEOUS MASS THUS OBTAINED, REGULATING THE TEMPERATURE OF THIS MASS AND THE SPEED OF DRAWING OFTHE
Claim 3
Dependent Claim
10 words
Glass fiber obtained by the process according to claim 1.