JP2560217B2 - Glass design support device - Google Patents

Description

The present invention relates to a glass design support device. More specifically, the present invention relates to a glass design support device that facilitates selective design of the composition and glass properties of a multi-component complex oxide that is vitrified.

(Prior Art) In recent years, a material called new glass, which has a new function different from that of conventional traditional glass, has been attracting attention and various materials have been developed. For example, glass for optical fibers can be given as an example, and it has become a material as an important player who supports the information-oriented society. Without being limited to such an example, like ceramic materials that are rapidly advancing in technology, glass having new functions completely different from the image of conventional glass is used for optoelectronic materials, electric / electronic materials, and biological materials.・ It has been drawing attention as a biochemical material.

However, even for such new glass,
Since the composition of glass is a complex composed of many compounds, for example, multiple oxides, it is not easy to precisely control the composition and physical properties to obtain the desired physical properties. .

In the situation so far, it is indispensable to accumulate experimental knowledge by enormous number of implementations and utilize it for the development of new glass materials. Therefore, at present,
Because it depends on repeated trial and error,
The labor and time required for designing the raw material composition and its composition ratio so as to realize the predetermined physical properties become great.

Therefore, it has been extremely difficult in practice to design the glass composition having the desired physical properties in advance in a short time and as appropriate.

(Problems to be Solved by the Invention) The present invention has been made in view of the circumstances as described above, and requires a great deal of labor and time to realize a glass having a desired composition and function. It is an object of the present invention to provide a support device for glass design, which overcomes the above problems and can easily and efficiently select the composition of a multi-component compound oxide that vitrifies and the physical properties of glass. I am trying.

(Means for Solving the Problem) In order to solve the above-mentioned problems, the present invention provides an interactive glass design support device including a knowledge base storage device, a computing device, an input device and a display device. The knowledge-based storage device includes: -a list of known component compounds for the component compounds that make up the glass; -a list of coefficients for the properties of the component compounds related to the glass physical property values; -known of the known glass composition and its physical property values. A glass list, and a glass physical property list for glass physical property value items and setting ranges of the glass physical property values, and 1A as a glass constituent from the known compound list <A> by an input device through a display device. Or two or more kinds of candidate component compounds, or <B> the range of candidate physical property values of glass is selected and input from the glass physical property list. Then, in the arithmetic unit, 1) When a candidate component compound is selected and input, <A>
If a candidate component compound that is input by referring to the known glass list is included, or if a candidate physical property value range is selected and input, then <B> satisfies that range. A candidate glass composition is set, 2) In the coefficient list Based on the general formula P = ΣPiXi (P: glass physical property value, Pi: coefficient of property of i component compound, Xi: i
The Young's modulus, which is one of the physical properties of glass, is calculated for all candidate glass compositions based on (indicating the mole fraction of the component compound). 3) Next, regarding the glass composition determined to be vitrifiable, a physical property value corresponding to the glass physical property value item of the glass physical property list is calculated by the above formula, and a glass design support device is provided. To do.

(Operation) With the above-described configuration, the device of the present invention simulates the composition of the components of glass and their physical properties in an interactive manner, guides the optimum composition and physical properties of glass, and realizes the desired glass material. To facilitate the design.

It saves a great deal of labor and time required for glass manufacturing through experimental trial and error, and enables glass design that was almost impossible until now.

Therefore, first, with respect to the above-mentioned constituent elements of the glass design support apparatus of the present invention, the technical meaning of the terms will be described.

<1> Knowledge-based storage device The knowledge-based storage device is a collection of predetermined facts (Facts).
Data) and a numerical value or its range set based on empirical hypothesis.

The “List of known compounds” is a list of known SiO ₂ and Al that are the individual components that make up glass.
It is a collection of compound names such as ₂ O ₃ , MgO and NaO as Fact Data.

The “coefficient list” describes the properties of the component compounds that are set by the theoretical consideration based on empirical facts regarding the magnitude of the influence of the above-mentioned component compounds that make up the glass on the physical properties of the glass, such as Young's modulus and coefficient of thermal expansion. It is a collection of coefficients (Pi in the above general formula).

For example, taking the refractive index as an example, Al ₂ O ₃ 1.520, ZrO ₂ 2.
It is set as 20, TiO ₂ 2.13 etc.

The "known glass list" includes various known glass compositions (composition component compound names and their ratios) and their physical properties such as Young's modulus,
This is a collection of Fact Data such as thermal expansion coefficient.

The “glass physical property list” is an item of glass physical property values handled by the design support apparatus of the present invention, for example, items such as Young's modulus, refractive index, specific heat, thermal expansion coefficient, and the empirical hypothesis about the allowable numerical range. It is a collection of set items.

<2> Input Device and Display Device In the glass design support device of the present invention, it is possible to design glass by an interactive method, and therefore the input device is closely related to the display device. For example, the process of making an input in a blank space on the screen of the display device and showing the calculation result on the display device based on this input can be repeated.

“Candidate component compound” The candidate component compound input by the input device is selected from the list of known component compounds in the above-mentioned knowledge base storage device, and is included as a glass component by the input person who is going to design. Ingredients you want to have, such as Al ₂ O ₃ and N
It means a compound such as aO and its ratio. When inputting this component compound, the range of permissible changes and the total number of component compounds constituting the glass are also input as necessary.

In the "candidate physical property value range of glass" input device, the glass to be designed can be input as having a specific (range) physical property value.

In this case, a candidate physical property value such as “refractive index: 1.50 to 2.55” is input.

In this input, the above “candidate component compound” may also be input.

In the input device, at least one of the above is selectively input.

<3> Computing device “Candidate glass composition” After inputting with the input device, a candidate glass composition including the input “candidate component compound” or a “candidate glass composition” satisfying the input “candidate physical property value range” Is set.

In this case, the “known glass list” of the above-mentioned knowledge base storage device is referred to, that is, the result of extraction of the corresponding one from the “known glass list” and the changeable range based on this extraction are “ Candidate glass composition (component name and its ratio) ".

"Determination of vitrifiable composition"Young's modulus was calculated for all of the above "candidate glass compositions", and "Glass physical property list" of knowledge-based storage
In contrast to the Young's modulus range for vitrification set in (4), it is determined whether vitrification is possible.

Then, for the candidate glass composition determined to be vitrifiable, glass physical property values other than Young's modulus are calculated and displayed. If the result is not satisfied, for example, if the physical properties such as the refractive index and the thermal expansion coefficient are not satisfied, the operation returns to the input operation.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

First, FIG. 1 exemplifies the configuration of the support apparatus of the present invention. For example, as shown in FIG. 1, the design support device includes a knowledge base storage device (1), an input device (2), an arithmetic unit (3) and a contrast unit (4) that form an arithmetic unit, and A display device (5). The knowledge base storage device (1) has the knowledge information list as described above, and each information from this list is input device (2), operation unit (3) in arithmetic device and contrast unit (4).
Reflected in.

The display device (5) is of an interactive type and is complementary to the input device (2).

Example <A> FIG. 2 shows an example in which the support device having such a configuration is shown in more detail.

In this example, a desired component compound is selected from the known component compound list of the component compounds constituting the glass from the knowledge base storage device (1) shown in the display device (5), and this is selected by the input device (2 ). For example, when an oxide is taken as an example of the component compound, a desired composition component compound is selected from the list as shown in FIG. 3 and, for example, a combination of a plurality of types is input together with the number of components.

After this input, a multi-element system candidate glass composition containing the candidate component compound selected is extracted and set by referring to the known glass composition of the knowledge base storage device (1) and the known glass list of its physical property values. Then, the vitrifiable composition is determined by the arithmetic device, and the physical property value is calculated for the composition determined to be vitrifiable. The term "composition" as used herein includes a combination of a plurality of types of component compounds that are considered to form the glass and their composition ratio (composition ratio).

Then, in the arithmetic unit, the contrast unit (4) refers to and compares various lists of the knowledge base storage unit (1), and the arithmetic unit (3) determines the vitrifiable composition and calculates the physical properties. It will be.

That is, in the present invention, first, the composition having a possibility of vitrification is estimated and judged from the Young's modulus. The determination of the composition with the possibility of vitrification here is performed by calculating the Young's modulus while changing the possible aspects of the type and composition ratio of the other compound to be combined with the candidate component compound for the candidate glass composition. Repeatedly, it means that Young's modulus for vitrification leads to a combination and composition ratio within an allowable setting range. The Young's modulus is used as a judgment index of vitrification possibility because the glass property as elasticity is focused on.

For example, FIG. 4 shows the relationship between the composition and the Young's modulus on the display device (5). Although the vitrification possibility was determined, the Young's modulus was calculated to be 676.101 Kbar, which is a low characteristic. It is judged that it is one. In this case, if the Young's modulus is too low in terms of level design, the composition will be corrected. As shown in FIG. 2, the correction re-input is performed in the input device (2).

Then, when the Young's modulus is appropriate, other physical property values are calculated by the arithmetic unit.

In the present invention, the physical properties (P) of the glass, including Young's modulus, are calculated by the following equation: P = ΣPiXi (Pi: i component compound property coefficient Xi: i component compound mole fraction). Since Pi is a value obtained by experience, the glass physical property (P) is of course an approximate value. In this equation, the coefficient of the property of the Pi: i component is P
The (Young's modulus) is set, for example, for each compound such as SiO ₂ , Al ₂ O ₃ , NaO, etc., from the viewpoint of how much it is considered as a factor that influences Young in the overall composition of the glass.

Then, the vitrification possibility is determined based on the Young's modulus whether the Young's modulus calculated by the above formula is within the Young's modulus range in the glass physical property list set in the knowledge base storage device (1). Will be determined by.

Of course, in the present invention, the setting range of the Young's modulus and the coefficient Pi that influences the Young's modulus calculation by the above formula are predetermined, but it is of course possible to correct and change them based on the finding of new facts. I am considering. This fix,
Changes are also incorporated as a system.

Regarding the candidate glass composition for which vitrification possibility is determined, other physical property values are also calculated by the above formula.
FIG. 5 shows an example in which the result is shown on the display device (5).
When these physical property values are different from those of the desired glass material, the types and composition ratios of the candidate component compounds are re-input and optimized in order to obtain the required physical properties while contrasting with the component composition.

 This process is also shown in FIG.

Embodiment <B> FIG. 6 shows a glass design support apparatus of the present invention which is different from the above procedure.

In this example, a case is shown in which an appropriate composition is derived from desired physical property values of glass. That is, as shown in FIG. 6, first, desired physical property values are input as shown in FIG. In this case, Young's modulus> 1000, density <5, and thermal expansion coefficient <30 are input.

When all the conditions of all the physical property values are satisfied, or when some of them are satisfied, all the candidate glass structures are extracted and set by referring to the known glass list of the knowledge base storage device (1).

Then, for all candidate glass compositions, the vitrification composition is determined by the Young's modulus as an index by the above formula,
A vitrifiable compositional composition and its composition ratio are derived. As a result, for example, as shown in FIG. 8, the display device (5) shows a composition having a molar ratio of SiO ₂ 50.1 Al ₂ O ₃ 39.9 ZrO ₂ 10.0.

Here, other physical property values are also displayed as shown in FIG.

Further, the composition and the physical property value are compared, and as shown in FIG. 9, the composition is similar to the above composition, and only the molar ratio of SiO ₂ 60 is re-input. As a result, the contrast between the composition and the physical properties shown in FIG. 10 is obtained.

In the above example of inputting the candidate physical property value range, needless to say, the candidate component compounds may also be selected and input.

Of course, in the above, when the composition and physical properties cannot be calculated and collated, the fact is displayed on the display device, and the input is performed again.

(Effects of the Invention) According to the present invention, it is possible to calculate physical properties based on numerical information of glass raw materials such as atomic radius and dissociation energy, and to design a glass material having a required composition and / or physical properties. In contrast to this, it can be carried out with extremely high efficiency and easily.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration example of the present invention. FIG. 2 is a block diagram showing an example of the apparatus of the present invention as a system flow. FIGS. 3, 4, and 5 are screen diagrams showing display examples according to this flow. FIG. 6 is a block diagram showing another example as a system flow. Figures 7, 8, 9 and 10
It is a screen figure which showed the example of a display which followed this flow.

Claims (1)

(57) [Claims] 1. An interactive glass design support device comprising a knowledge base storage device, a computing device, an input device and a display device, wherein the knowledge base storage device is a known component of a component compound that constitutes glass. Compound list, coefficient list about properties of component compounds related to glass physical property values, known glass list about known glass composition and its physical property values, glass physical property list about glass physical property value items and setting range of glass physical property values With the input device via the display device, one or more candidate component compounds as glass constituent components from the known component compound list, and a range of candidate physical property values of glass from the glass physical property list After at least one of them is selected and input, in the arithmetic unit: 1) When a candidate component compound is selected and input. In the case where the candidate glass composition is input by referring to the known glass list, or when the candidate physical property value range is selected and input, a candidate glass composition that satisfies the range is set. 2) In the coefficient list Based on the general formula P = ΣPiXi (P: glass physical property value, Pi: coefficient of property of i component compound, Xi: i
The Young's modulus, which is one of the physical properties of glass, is calculated for all candidate glass compositions based on (indicating the mole fraction of the component compound), and the composition that can be vitrified is compared with the Young's modulus range in the above list of physical properties of glass. 3) Next, regarding the glass composition determined to be vitrifiable, the physical property value corresponding to the glass physical property value item of the glass physical property list is calculated by the above formula.