Whether the melting temperature of the alloy is between or lower than both

It's lower than 2, and those who have studied physical chemistry know that Sn and Pb phase diagrams.

In general, the melting point of an alloy is lower than that of its constituent metals. An alloy is a mixture with metallic properties synthesized by a certain method between two or more metals and metals and metals or non-metals. It is not a mixture in the general concept, or even a pure substance, such as a single-phase metal interlibrant alloy, the added alloying elements can form solid solutions, compounds, and produce endothermic or exothermic reactions, thereby changing the properties of the metal matrix.

Characteristics of the alloyThe melting point of most alloys is lower than the melting point of any of the constituent metals in their components, and the hardness is generally greater than the hardness of any metal in their components, with the exception of the sodium-potassium alloy is in a liquid state, which is used as a thermal conductive agent in atomic reactors, and the electrical and thermal conductivity of the alloy is lower than that of any component metal. Using this property of alloys, it is possible to manufacture materials with high resistance and high thermal resistance.

It can also manufacture materials with special properties, some of which have strong corrosion resistance (such as stainless steel), such as mixing 15% chromium and 9% nickel into iron to obtain a corrosion-resistant stainless steel, which is suitable for the chemical industry.

Generally, the melting point of alloys is lower than that of each component metal.

Unlike pure gold, most alloys do not have a fixed melting point, and when the temperature is in the melting temperature range, the mixture is in a solid-liquid state. Hence it can be said that the melting point of the alloy is lower than that of the component metals. See eutectic mixtures.

Among the common alloys, brass is an alloy of copper and zinc; Bronze is an alloy of tin and copper and is used in statues, ornaments, and church bells. Some countries use alloys (e.g. nickel alloys) for their currencies.

The formation of alloys often improves the properties of elemental elements, for example, steel is stronger than its main constituent element, iron. The physical properties of an alloy, such as density, reactivity, Young's modulus, electrical and thermal conductivity, may be similar to the constituent elements of an alloy, but the tensile and shear strength of an alloy is often very different from that of the constituent elements. This is due to the fact that the arrangement of atoms in alloys is very different from that in elemental matter.

The melting point is determined by the force between the particles inside the substance, and the atoms of the same metal are bonded by metallic bonds, which have strong force and high melting point; When foreign atoms enter the crystal, the metal bonds are broken, and the metal is chaotic, and the internal energy of the whole metal increases, resulting in a decrease in the melting point. This is why the melting point of most alloys is lower than that of constituent metals.

However, the melting point of the alloy is lower than that of the pure metals that make up the alloy, which is conditional.

When a component of an alloy is dominant, the melting point is close to and below that of the metal.

For example, when the iron content of tungsten ferroalloy is less, the melting point is close to that of tungsten but lower than that of tungsten. At this time, the melting point is higher than that of iron.

The melting point of chemical alloys is lower than that of pure metals, and the melting point is determined by the force between particles inside the substance.

A solid product with metallic properties obtained by mixing and melting one metal with another or several metals or non-metals, cooling and solidifying.

1. The melting point of most alloys is lower than the melting point of any of the constituent metals in their components;

2. The hardness is generally greater than the hardness of any metal in its components;

3. The electrical and thermal conductivity of the alloy is lower than that of any group of metals.

4. Some have strong corrosion resistance (such as stainless steel), such as adding 15% chromium and 9% nickel to iron to obtain a corrosion-resistant stainless steel.

Pure gold refers to 24k gold, which means that its gold content is 100%. But there is no such thing as a 24k ** in the world. Therefore, if there is a ** marked with "24k**" or "pure gold" on the market, it is not true.

The pure gold content in the ornamental gold is called "gold bit", and the English is karat, so it is called K gold. It is generally said that pure gold is 24k, that is, the theoretical gold content is 100%, therefore.

The gold content of 22k is:

The gold content of 20k is.

The gold content of 18k is 75% (18 24 = spine.

The amount of rent with grip for 14k is (14 24=.)

The gold content of 12k is 50% (12 24=

The gold content of 10k is (10 24=

The gold content of GK is (9 24=

The gold content of SK is (8 24=

The melting point actually represents the magnitude of the force between substances, and the particles between the same substances are evenly distributed, so the force is strong and the melting point is high; Whereas, alloys have many different substances, and the particles are unevenly distributed, so the force is weak and the melting point is low.

The magnitude of the force between metal ions is determined.