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US 2003/0124383 A1Published application
Mechanoluminescence material, producing method thereof, and usage thereof
AssigneeNational Institute of Advanced Industrial Science and Technology
InventorsMorito Akiyama, Chao-Nan Xu, Kazuhiro Nonaka
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Abstract
A mechanoluminescence material of the present invention is produced by adding a luminescence center to a mother body material, wherein: said mother body material is constituted of at least one kind of oxide selected from alumino silicate, aluminate, silicate, tantalate, niobate, gallium oxide, and ZrO2, and said luminescence center is at least one kind selected from a rare earth metal and a transition metal which emits light when electrons excited by mechanical energy are restored to a normal state.
Claims11
A mechanoluminescence material, comprising:
- a mother body material;
- and a luminescence center added to the mother body material, wherein:
- said mother body material is constituted of at least one kind of oxide selected from:
- alumino silicate having a structure indicated by a general formula (A)
- xM1O.yAl2O3.zSiO2
- (M1 in the formula is Ca, Ba or Sr, and a part thereof may be replaced with at least one kind selected from Na, K, and Mg, and each of x, y, and z is 1 or more);
- aluminate having a structure indicated by a general formula (B)
- xM2O.yAl2O3
- (M2 in the formula is Ca or Ba, and a part thereof may be replaced with either Mg or La, and each of x and y is 1 or more);
- silicate having a structure indicated by a general formula (C)
- xM3O.ySiO2
- (M3 in the formula is Ca or Sr, and a part thereof may be replaced with at least one kind selected from Na, Mg, Zn, Be, Mn, Zr, Ce, and Nb, and each of x and y is 1 or more), or indicated by Ba2MgSiO7;
- tantalate or niobate having a structure indicated by a general formula (D)
- xM4O.yM54O10
- (M4 in the formula is Ca, Ba or Sr, and M5 is replaced with at least one kind selected from Ta and Nb, and each of x and y is 1 or more);
- gallium oxide having a structure indicated by a general formula (E)
- xM6O.yGa2O3
- (M6 in the formula is Ca, Ba or Sr, and a part thereof may be replaced with La, and each of x and y is 1 or more);
- and
- ZrO2, and
- said luminescence center is at least one kind selected from a rare earth metal and a transition metal which emits light when electrons excited by mechanical energy are restored to a normal state.
18 more elements
A method of producing a mechanoluminescence material, said mechanoluminescence material including:
- a mother body material;
- and a luminescence center added to the mother body material, wherein:
- said mother body material is constituted of at least one kind of oxide selected from:
- alumino silicate having a structure indicated by a general formula (A)
- xM1O.yAl2O3.zSiO2
- (M1 in the formula is Ca, Ba or Sr, and a part thereof may be replaced with at least one kind selected from Na, K, and Mg, and each of x, y, and z is 1 or more);
- aluminate having a structure indicated by a general formula (B)
- xM2O.y Al2O3
- (M2 in the formula is Ca or Ba, and a part thereof may be replaced with either Mg or La, and each of x and y is 1 or more);
- silicate having a structure indicated by a general formula (C)
- xM3O.ySiO2
- (M3 in the formula is Ca or Sr, and a part thereof may be replaced with at least one kind selected from Na, Mg, Zn, Be, Mn, Zr, Ce, and Nb, and each of x and y is 1 or more), or indicated by Ba2MgSiO7;
- tantalate or niobate having a structure indicated by a general formula (D)
- xM4O.yM54O10
- (M4 in the formula is Ca, Ba or Sr, and M5 is replaced with at least one kind selected from Ta and Nb, and each of x and y is 1 or more);
- gallium oxide having a structure indicated by a general formula (E)
- xM6O.yGa2O3
- (M6 in the formula is Ca, Ba or Sr, and a part thereof may be replaced with La, and each of x and y is 1 or more);
- and
- ZrO2, and
- said luminescence center is at least one kind selected from a rare earth metal and a transition metal which emits light when electrons excited by mechanical energy are restored to a normal condition,
- said method comprising the steps of:
- adding the luminescence center to the mother body material at a ratio of not less than 0.001 mass % and not more than 20 mass % with respect to the mother body material;
- and
- sintering the mother body material containing the luminescence center at not less than 600° C. and not more than 1800° C. in a reduction atmosphere.
22 more elements
A composite material constituted by combining a mechanoluminescence material with other inorganic material or organic material, said mechanoluminescence material including:
- a mother body material;
- and a luminescence center added to the mother body material, wherein:
- said mother body material is constituted of at least one kind of oxide selected from:
- alumino silicate having a structure indicated by a general formula (A)
- xM1O.yAl2O3.zSiO2
- (M1 in the formula is Ca, Ba or Sr, and a part thereof may be replaced with at least one kind selected from Na, K, and Mg, and each of x, y, and z is 1 or more);
- aluminate having a structure indicated by a general formula (B)
- xM2O.yAl2O3
- (M2 in the formula is Ca or Ba, and a part thereof may be replaced with either Mg or La, and each of x and y is 1 or more);
- silicate having a structure indicated by a general formula (C)
- xM3O.ySiO2
- (M3 in the formula is Ca or Sr, and a part thereof may be replaced with at least one kind selected from Na, Mg, Zn, Be, Mn, Zr, Ce, and Nb, and each of x and y is 1 or more), or indicated by Ba2MgSiO7;
- tantalate or niobate having a structure indicated by a general formula (D)
- xM4O.yM54O10
- (M4 in the formula is Ca, Ba or Sr, and M5 is replaced with at least one kind selected from Ta and Nb, and each of x and y is 1 or more);
- gallium oxide having a structure indicated by a general formula (E)
- xM6O.yGa2O3
- (M6 in the formula is Ca, Ba or Sr, and a part thereof may be replaced with La, and each of x and y is 1 or more);
- and
- ZrO2, and
- said luminescence center is at least one kind selected from a rare earth metal and a transition metal which emits light when electrons excited by mechanical energy are restored to a normal state.
18 more elements
A method of causing a mechanoluminescence material to emit light comprising the step of applying a mechanical force from outside to the mechanoluminescence material,
- said mechanoluminescence material including:
- a mother body material;
- and a luminescence center added to the mother body material, wherein:
- said mother body material is constituted of at least one kind of oxide selected from:
- alumino silicate having a structure indicated by a general formula (A)
- xM1O.yAl2O3.zSiO2
- (M1 in the formula is Ca, Ba or Sr, and a part thereof may be replaced with at least one kind selected from Na, K, and Mg, and each of x, y, and z is 1 or more);
- aluminate having a structure indicated by a general formula (B)
- xM2O.yAl2O3
- (M2 in the formula is Ca or Ba, and a part thereof may be replaced with either Mg or La, and each of x and y is 1 or more);
- silicate having a structure indicated by a general formula (C)
- xM3O.ySiO2
- (M3 in the formula is Ca or Sr, and a part thereof may be replaced with at least one kind selected from Na, Mg, Zn, Be, Mn, Zr, Ce, and Nb, and each of x and y is 1 or more), or indicated by Ba2MgSiO7;
- tantalate or niobate having a structure indicated by a general formula (D)
- xM4O.yM54O10
- (M4 in the formula is Ca, Ba or Sr, and M5 is replaced with at least one kind selected from Ta and Nb, and each of x and y is 1 or more);
- gallium oxide having a structure indicated by a general formula (E)
- xM6O.yGa2O3
- (M6 in the formula is Ca, Ba or Sr, and a part thereof may be replaced with La, and each of x and y is 1 or more);
- and
- ZrO2, and
- said luminescence center is at least one kind selected from a rare earth metal and a transition metal which emits light when electrons excited by mechanical energy are restored to a normal state.
19 more elements
Dependencies are inferred from the claim text.