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Cristal are fundamentally anisotropic. They are geometrically organized in planes that are denser than other direction. When acid etch a crystal, it began where it's easier, by the planes directions where the atoms are the most distant from each other. This process highlight's the crystal planes.
What else can I help you with?
How do you measure penetration in welding?
To measure penetration of a weld, one must cut and etch the weld, preferably on a test coupon. Etching is just using an acid that will discolor the weld metal so that there is a visible difference between the weld metal and the base metal. Once the acid has taken affect, one can measure the weld using calipers or a similar measuring device.
What materials are used to make an ipod touch?
Silicon, Plastics, Metal, Lead, Rosin, Crystal, Glass, and Chemicals in the battery.
What is a wooden or metal structure that construction workers stand on?
Scaffold
What is grain flow in forge component?
Grain flow is a typical grain pattern generated during forging of metal. When a piece of metal is cold or hot forged by applying external force or pressure, then metal starts deforming normal to the direction of application of pressure. During the process of permanent deformation, metal grains get deformed & generate what is known as" flow lines ". This is called Grain Flow. It can be seen by chemically etching cross sectional piece of forge metal shown fig below.
Why is doping bad?
Pure semiconductors are insulators at room temperature. Impurities must be added to imbalance the covalent bonds of the crystal structure to make them conduct. This process of adding impurities is called doping. Dopants are usually selected from the columns immediately left (P type dopants producing hole current carriers) and immediately right (N type dopants producing electron current carriers) of the column of semiconductors on the periodic table.By varying the amount of dopant the resistivity of the semiconductor varies inversely.By using opposite type dopants adjacent to each other a PN junction forms, which can be used to make diodes, transistors, etc.By doping an area of the semiconductor, oxidizing the surface of that area and plating the oxide with metal a MOS capacitorcan be made.Components are wired together to make a circuit by covering the chip with an insulator (typically an oxide or nitride), etching holes in the insulator to the component contacts, plating the chip with metal and etching away the metal where you don't want things connected.Thus doping (and a few other process steps) allows you to create all electronic components except inductors (and those can either be connected externally or simulated with a circuit called a "gyrator" consisting of a capacitor and several opamps) needed to make monolithic ICs.
What is Metallography?
metallography is the science and art of preparing a metal surface for analysis by grinding,polishing, and etching to reveal it's microstructure constituent
How is it possible to see grains on the surface of a metal?
The grains on the surface of a metal can be seen through a process called metallography, which involves polishing and etching the metal to reveal its microstructure. Depending on the metal and the processing it has undergone, grains can be visible due to differences in crystal orientation, size, and distribution. These grains are often revealed under a microscope equipped with appropriate magnification and imaging techniques.
What is etching on paper?
An etching on paper is a print made from a metal plate, called an etching.
Does dubnium have a crystal like structure?
As a metal dubnium has a crystalline structure but this structure is not known today.
How are serial numbers restored in guns?
When a number or letter is STAMPED into metal, it causes a change in the crystal structure in the metal. If someone were to file or grind off a serial number, that change in the crystal is still there. One technique to to polish the metal smooth, warm the metal, and apply an acid to the metal. Where the crystal structure is different, the metal changes color, and the original number becomes visible.
Why etchant used in microscopic examination of metal?
Etchant is used in the microscopic examination of metal to reveal the microstructure of the metal, which helps in assessing its properties and quality. By selectively corroding different phases or constituents in the metal, etchant can highlight grain boundaries, inclusions, and other features that may affect the metal's mechanical properties. This process allows for better evaluation of the metal's structure and can provide insights into factors such as material composition, heat treatment, and processing history.
What is the effect of cold working on the crystal structure of a metal?
Cold working introduces dislocations in the crystal structure of a metal, causing the grains to deform and orient themselves in the direction of the applied stress. This can increase the strength and hardness of the metal but may also lead to reduced ductility and toughness.
What factors affect the diffusion rate in solid metal crystals?
The diffusion rate in solid metal crystals is influenced by factors such as the temperature of the crystal (higher temperature increases diffusion rate), the presence of defects or imperfections in the crystal structure (such as vacancies or dislocations), and the composition of the metal crystal (alloying elements can affect diffusion rate). Additionally, the crystal structure and grain boundaries can also impact diffusion rates in solid metal crystals.
How can I etch brass to create intricate designs on metal surfaces?
To etch brass and create intricate designs on metal surfaces, you can use a chemical etching process. First, clean the brass surface thoroughly. Then, apply a resist material, such as a special etching ink or tape, to protect the areas you want to keep. Next, immerse the brass in an etching solution, such as ferric chloride, to remove the exposed metal. Finally, rinse off the resist material to reveal your intricate design. Be sure to follow safety precautions when working with chemicals.
What is the best etching solution for creating detailed designs on metal surfaces?
Ferric chloride is often considered the best etching solution for creating detailed designs on metal surfaces.
How could one describe a metal crystal?
A metal crystal is a solid arrangement of metal atoms in a repeating pattern or lattice structure. These crystals exhibit properties such as high electrical and thermal conductivity, malleability, and ductility. The arrangement of atoms in a metal crystal gives rise to its unique mechanical, electrical, and thermal properties.
To ornament metal by etching or by inlaying with gold or silver?
damascene
