Welcome to Metallographic Microscope
Welcome to Metallographic Microscope where you will find a large selection of fine quality metallographic microscopes for your specific need. We provide upright as well as inverted models, battery powered portable field versions, large stage models, monocular, binocular, and trinocular versions. Also known as a metallurgical microscope, a metallographic microscopes is used for viewing polished metal surfaces under high power magnification. Most any opaque specimen can be used if it has a flat enough surface. For example, silicon semiconductor wafers are often inspected for on quality control lines by use of a metallographic microscope. This type of microscope finds a wide range of applications in industrial use for inspection.
Materials science studies in universities and metallurgy laboratories use them for examining the metallic grain structures of heat treated metals as well as studying composite materials. They are also used in metal foundries for inspection of the cast metal samples. This type of microscope uses reflecting light that travels through the microscope objective. This is known as epi-illumination. Light in a dissecting stereo microscope is also reflected but it comes from an illumination source from the side, or sometimes is coaxial. In coaxial illumination, the light comes along the same axis as the objective by means of a prism located within the microscope head. Light enters the side of the prism and is reflected downward to the specimen. Still, the light does not travel through the objective as it does in the metallographic microscope.
A metallurgical microscope is also a high power compound microscope with objectives of various magnifications on a turret that rotates them into place. Common magnifications are 100x up to 1000x. For the high power 1000x, an oil immersion objective is used in conjunction with a drop of immersion fluid that goes on the specimen and eliminates air between the objective lens and the specimen. This reduces light refraction and allows the lens to have a higher numerical aperature, and thus, more resolving power and resolution. A stereo microscope only goes up to about 45x, and sometimes up to 65x with a high ratio zoom with the standard 10x eyepiece set. Higher power eyepieces, up to 20x and sometimes 25x can be used, as well as bottom Barlow lens (1.5x and 2x) installed, but the image quality suffers as the stereoscopic microscope has practical limitations to its magnification. If the specimen is smooth, then it is usually preferrable to utilize a metallographic microscope, especially if needing over 90x magnification.
We also can provide a measuring kit with the metallographic microscope, including a measuring eyepiece reticle and a stage micrometer for calibration. We have several highly qualified microscopists on staff who are available to assist you with finding the right microscope for your application. We encourage you to contact us. This is a specialized field, and it is imperative that the proper selection of microscopy equipment be done for optimal imaging. We sell many metallographic microscopes, but they have varying capabilities, strengths, and weaknesses, some being made for more specialized applications. Our sales microscopists are trained on each type of metallurgical microscope and are able to make a qualified recommendation. We look forward to hearing from you.
Call our Sales Hotline at 1-877-384-3931
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