X-ray irradiation induced discoloration luminescent glass as well as preparation method and application thereof

Abstract

The invention relates to the technical field of optical glass, in particular to X-ray irradiation induced discoloration luminescent glass and a preparation method and application thereof.The X-ray irradiation induced discoloration luminescent glass is prepared from, by mole, 26%-32% of SiO2, 38%-41% of B2O3, 19%-25% of Na2CO3, 10%-15% of Al2O3 and 0.5% of Eu2O3; the preparation method comprises the following steps: weighing the raw materials according to the ratio, grinding and uniformly mixing in a ceramic mortar, sintering at 1400 DEG C in an air atmosphere, pouring glass liquid onto a brass mold, and cooling to room temperature; transferring into a Germany furnace, and keeping the temperature at 420 DEG C for 5 hours; then grinding and polishing are carried out, and the photochromic luminescent glass with the X-ray irradiation induction function is prepared. The transparent glass prepared in the invention shows X-ray irradiation induced photochromism and luminescence at the same time, and the transparent glass medium can realize dual-channel X-ray imaging. And guidance is provided for expanding the functional application of the photonic glass.

Description

Technical Field

[0001] The present invention relates to the technical field of optical glass, and particularly relates to an X-ray irradiation-induced color-changing and luminescent glass and a preparation method and application thereof. Background Art

[0002] X-ray irradiation photochromic and luminescent glass refers to a glass that can generate light absorption in the visible light region under the irradiation of X-rays, reduce the light transmittance of the glass or cause color changes, and at the same time exhibit irradiation luminescence. With the development of X-ray imaging technology, X-ray imaging plays a crucial role in the fields of medical treatment, security inspection, industrial flaw detection, non-destructive testing, etc. The requirements for non-invasive detection technology of the human body interior are gradually increasing, and it is becoming more and more important to develop new multi-functional detection substrates. X-ray indirect imaging mainly converts high-energy particles into visible photons, and uses the strong penetrability of X-rays to leave the internal structure information of the detected object for further analysis. However, with the increasing requirements for imaging technology, a single imaging method limits its development, and there is an urgent need to develop multi-functional X-ray detection substrates.

[0003] To solve the above problems, the present invention proposes a preparation method of an X-ray irradiation-induced color-changing and luminescent glass, which exhibits both photochromism and irradiation luminescence under X-ray irradiation. By using the imaging methods of color change and luminescence, multi-channel X-ray imaging is realized. This glass shows great application prospects in the fields of imaging and optical information storage, etc. Summary of the Invention

[0004] The purpose of the present invention is to provide an X-ray irradiation-induced color-changing and luminescent glass and a preparation method and application thereof. The glass transparent medium prepared in the present invention has X-ray irradiation photochromism and irradiation luminescence. Under X-ray irradiation, the glass exhibits obvious irradiation luminescence. After stopping X-ray irradiation, the color of the glass changes from transparent to gray-black. Utilizing the X-ray penetration ability and the color change and luminescence caused by irradiation, it is expected to realize multi-channel X-ray imaging of the target object in the glass.

[0005] To achieve the above technical purpose and reach the above technical effect, the present invention is realized through the following technical solutions:

[0006] An X-ray irradiation-induced color-changing and luminescent glass, comprising raw materials in the following molar percentages:

[0007] SiO2: 26 - 32%, B2O3: 38 - 41%, Na2CO3: 19 - 25%, Al2O3: 10 - 15%, Eu2O3: 0.5%;

[0008] On the other hand, the present invention proposes a preparation method of the above glass, comprising the following steps:

[0009] S1: Calculate, weigh, and thoroughly grind according to the molar ratio of SiO2: 26 - 32%, B2O3: 38 - 41%, Na2CO3: 19 - 25%, Al2O3: 10 - 15%, and Eu2O3: 0.5%, and then place them in a ceramic crucible for standby;

[0010] S2: Heat the high-temperature box furnace to 1400 °C;

[0011] S3: Put the crucible containing the mixture into the high-temperature box furnace and sinter it fully for 30 minutes;

[0012] S4: Directly take out the sintered molten liquid from the high-temperature box furnace with the crucible, pour it onto a copper plate, and quickly cover it with a copper plate cover to quench and form a precursor glass;

[0013] S5: Put the precursor glass into the furnace, heat it up to 420 °C along with the furnace and keep it warm for 5 hours for heat treatment to remove the residual stress in the glass;

[0014] S6: Produce the X-ray irradiation-induced color-changing and luminescent glass.

[0015] On the other hand, the present invention proposes the application of the above glass in multi-channel X-ray imaging.

[0016] On the other hand, the present invention proposes the application of the above glass in information storage.

[0017] Advantages of the present invention:

[0018] By simultaneously realizing two phenomena of photochromism and irradiation luminescence in the glass material, the present invention has created a new mode of multi-channel X-ray imaging. The photochromic property is due to the valence state change or the formation of defect states of Eu3+ ions (doped with 0.5% Eu2O3) in the glass under X-ray irradiation, resulting in enhanced absorption in the visible light region, thereby reducing the light transmittance of the glass or causing color changes (such as the gray color change shown in Example 1 and Figure 1 . This photochromic phenomenon provides the basis for the imaging channel based on color. At the same time, the irradiation luminescence property is due to the 4f-4f transition of Eu3+ ions excited by X-rays, producing significant red luminescence (such as the luminescence phenomenon shown in Example 2 and Figure 3 . The luminescence intensity is positively correlated with the X-ray dose, which provides the basis for the imaging channel based on luminescence. By combining the two imaging methods of color change and luminescence, the present invention realizes richer and more accurate X-ray imaging information, avoiding the information limitation of a single imaging method. It can be widely applied to simultaneously obtain organ morphology and function information in medical diagnosis, and to simultaneously detect material defects and internal stress distribution in industrial flaw detection.

[0019] The heat treatment process (holding at 420°C for 5 hours) of the materials of the present invention effectively removes the residual stress in the glass, significantly improves the mechanical strength and fracture resistance of the glass, and ensures its long-term reliability in applications. Secondly, as described in Example 1, the glass has high transparency before X-ray irradiation, indicating that the material has excellent uniformity and low light scattering characteristics, and is suitable for high-resolution imaging. In addition, by precisely controlling the doping ratio of Eu2O3, the controllable color change and luminescence phenomena under X-ray irradiation are achieved, ensuring the stability and repeatability of the material properties.

[0020] The preparation method of the present invention is simple and efficient, suitable for large-scale production and promotion; the raw materials used (SiO2, B2O3, Na2CO3, Al2O3, Eu2O3) are all common glass raw materials, with low cost and easy to obtain. By precisely controlling the molar ratio of each component, the stability and repeatability of the material properties are ensured. Secondly, the preparation process only requires conventional processes such as high-temperature sintering (sintering at 1400°C for 30 minutes), heat treatment (holding at 420°C for 5 hours), and grinding and polishing, without the need for complex equipment or special conditions, and is suitable for large-scale industrial production. In addition, the copper plate quenching process is adopted to quickly form the precursor glass, avoiding the formation of crystals at high temperatures, and ensuring the uniformity and glassy structure of the material.

[0021] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the transmission spectrum before and after X-ray irradiation in Example 1 of the present invention;

[0024] Figure 2 It is a schematic diagram of the glass before and after irradiation in Example 1 of the present invention;

[0025] Figure 3 It is a schematic diagram of the irradiation emission spectrum of the glass irradiated with different doses of X-rays in Example 2 of the present invention;

[0026] Figure 4 It is a schematic diagram of X-ray imaging in Example 3 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0028] Example 1

[0029] A method for preparing an X-ray irradiation-induced color-changing luminescent glass as described in this embodiment includes the following steps:

[0030] S1: Prepare a mixture: Calculate, weigh, and fully grind according to the molar ratio of SiO2: 26%, B2O3: 41%, Na2CO3: 19%, Al2O3: 13.5%, Eu2O3: 0.5%, and then place it in a ceramic crucible for standby;

[0031] S2: Heat the high-temperature box furnace to 1400 °C;

[0032] S3: Put the crucible containing the mixture into the high-temperature box furnace and sinter it fully for 30 minutes;

[0033] S4: Directly take out the sintered molten liquid from the high-temperature box furnace with the crucible, pour it onto a copper plate, and quickly cover it with a copper plate cover to quench and form a precursor glass;

[0034] S5: Put the precursor glass into the furnace, heat it up to 420 °C with the furnace and keep it warm for 5 hours for heat treatment to remove the residual stress in the glass.

[0035] S6: Move the glass into X-ray irradiation for 15 minutes, and test the transmission spectrum before and after color change.

[0036] In this Example 1, by doping 0.5% Eu2O3 in the glass, through Figure 1 It can be seen that after X-ray irradiation, the absorption of the glass in the visible light range decreases. The glass shows high transparency before X-ray irradiation and exhibits obvious gray color change after X-ray irradiation, demonstrating the photochromic properties of the glass under X-ray irradiation.

[0037] Example 2

[0038] A method for preparing an X-ray irradiation-induced color-changing luminescent glass as described in this embodiment includes the following steps:

[0039] S1: Prepare a mixture: Calculate, weigh, and fully grind according to the molar ratio of SiO2: 32%, B2O3: 38%, Na2CO3: 19%, Al2O3: 10.5%, Eu2O3: 0.5%, and then place it in a ceramic crucible for standby;

[0040] S2: Heat the high-temperature box furnace to 1400 °C;

[0041] S3: Place the crucible containing the mixture into the high-temperature box furnace and sinter it fully for 30 minutes;

[0042] S4: Directly take out the molten liquid after sintering from the high-temperature box furnace with the crucible, pour it onto a copper plate, and quickly cover it with a copper plate cover to quench and form a precursor glass;

[0043] S5: Put the precursor glass into the furnace, heat it up to 420 °C with the furnace and keep it warm for 5 hours for heat treatment to remove the residual stress in the glass.

[0044] S6: Irradiate the glass with X-rays at different doses, and obvious irradiation luminescence appears during the irradiation process and test its emission spectrum.

[0045] In Example 2, obvious irradiation luminescence phenomenon appears in the glass. It can be seen that Figure 3 during the irradiation process, obvious red luminescence appears in the glass, and its luminescence intensity increases with the increase of irradiation and dose, indicating the application of this glass in the fields such as X-ray dose detection.

[0046] Example 3

[0047] A preparation method of an X-ray irradiation-induced color-changing luminescent glass as described in this example includes the following steps:

[0048] S1: Prepare the mixture: Calculate, weigh, and fully grind according to the molar ratio of SiO2: 28.5%, B2O3: 41%, Na2CO3: 25%, Al2O3: 15%, Eu2O3: 0.5%, and place it in a ceramic crucible for standby;

[0049] S2: Heat the high-temperature box furnace to 1400 °C;

[0050] S3: Place the crucible containing the mixture into the high-temperature box furnace and sinter it fully for 30 minutes;

[0051] S4: Directly take out the molten liquid after sintering from the high-temperature box furnace with the crucible, pour it onto a copper plate, and quickly cover it with a copper plate cover to quench and form a precursor glass;

[0052] S5: Put the precursor glass into the furnace, heat it up to 420 °C with the furnace and keep it warm for 5 hours for heat treatment to remove the residual stress in the glass;

[0053] S6: Place the imaging target object between the glass and the X-ray;

[0054] S7: Irradiate the imaging object with X-rays.

[0055] In this Example 3, the glass exhibits an obvious X-ray irradiation luminescence phenomenon. From Figure 4 it can be seen that the glass utilizes the X-ray irradiation of the glass to emit light and the penetrability of X-rays to successfully obtain the information of glass luminescence imaging; in addition, color change imaging is also expected to be achieved through color change. Therefore, the present invention has successfully realized multi-channel X-ray imaging by using X-ray irradiated photochromic luminescent glass, promoting the multi-functional application of photon glass.

[0056] In summary, the multi-channel X-ray imaging glass applied with the X-ray irradiated induced color change luminescent glass of the present invention application has more advantages than other materials in the existing single imaging technology, mainly in that it realizes dual-channel imaging of color change and luminescence. Therefore, the present invention further promotes the multi-functional application of photon glass and also breaks through the existing X-ray imaging technology.

[0057] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An X-ray irradiation-induced color-changing and luminescent glass, characterized in that, Comprising raw materials in the following molar percentages: SiO2: 26 - 32%, B2O3: 38 - 41%, Na2CO3: 19 - 25%, Al2O3: 10 - 15%, Eu2O3: 0.5%.

2. The preparation method of the X-ray irradiation-induced color-changing luminescent glass according to claim 1, characterized in that: Comprising the following steps: S1: According to the molar ratio of SiO2: 26 - 32%, B2O3: 38 - 41%, Na2CO3: 19 - 25%, Al2O3: 10 - 15%, Eu2O3: 0.5%, calculate, weigh, and after sufficient grinding, place in a ceramic crucible for standby; S2: Heat the high-temperature box furnace to 1400 °C; S3: Put the crucible containing the mixture into the high-temperature box furnace and sinter it fully for 30 minutes; S4: Directly take out the sintered molten liquid from the high-temperature box furnace with the crucible, pour it onto a copper plate, and quickly cover it with a copper plate cover for quenching to form a precursor glass; S5: Put the precursor glass into the furnace, heat it up to 420 °C with the furnace and keep it warm for 5 hours for heat treatment to remove the residual stress in the glass; S6: Obtain the X-ray irradiation-induced color-changing luminescent glass.

3. Application of the glass according to claim 1 in multi-channel X-ray imaging.

4. Application of the glass according to claim 1 in information storage.

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