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Materials Science
In situ Electron Microscopy
In situ microscopy for the high-resolution, real-time observation of samples’ responses to stimuli.
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In situ analysis
As materials research continues to advance, it is becoming increasingly important to not only observe materials in their initial and final state but also throughout their various applications. This might include imaging metal feedstocks as they are heated for additive manufacturing or wetting and drying of functionalized nanoparticles in order to understand their behavior in real-world conditions. Characterizing these behaviors is crucial as they impact critical research areas such as clean energy, transportation, catalysis, nano-electronics, and even human health.
In situ electron microscopy
While electron microscopy (EM) has traditionally been a static imaging method, advances in sample handling and rapid imaging have allowed the technique to be used for live, in situ observations. The high resolution of EM enables you to investigate nanoscale annealing behavior, phase transformations in metals, structural changes, sintering phenomena in catalysts, segregation/diffusion phenomena, and more.
In situ EM analysis of materials requires that the instruments offer fast and quantitative data acquisition along with dynamic high-resolution imaging. This is especially important when the investigated processes are dependent on rapidly changeable variables like temperature or humidity. For such dynamic experiments, the combination of flexibility in sample imaging, the ability to use different beam and vacuum conditions, and the fast collection of compositional data are indispensable.
A piece of solder heated and cooled directly within the scanning electron microscope. (Video)
In situ electron microscopes from Thermo Fisher Scientific
Thermo Scientific Environmental scanning electron microscopy (ESEM) and DualBeam (focused ion beam SEM) systems can operate under a variety of conditions that are needed for realistic in situ experiments. In particular, the MEMS-based Thermo Scientific μHeater Holder, in combination with in situ sample preparation, provides high-quality characterization at elevated temperatures.
Two-phase Co-Sb alloy heated to 700°C on a high vacuum heating stage. The antimony-rich phase sublimates during heating, causing exposure of the second phase (right image).
Mixture of magnetite and hematite nanoparticles heated to 1030 °C. This backscattered electron image was acquired simultaneously with the EDS elemental maps (see next image).
Mixture of magnetite and hematite nanoparticles heated to 1030 °C. This combined EDS map of iron and oxygen was acquired simultaneously with the backscattered electron image (see previous image).
Texture development on implant material. As the temperature increases from 700°C to 1300°C (next image) we can observe a completely different surface structure. Temperature: 700°C, Pressure: 120 Pa.
Texture development on implant material. As the temperature increases from 700°C (previous image) to 1300°C we can observe a completely different surface structure. Temperature: 1300°C, Pressure: 120 Pa.
Sodium chloride crystals dissolving and recrystallizing, observed directly in the low-vacuum mode of an environmental SEM.
Tissue fiber wetting and drying observed directly in the low-vacuum mode of an environmental SEM.
Metal nanoparticles coalescing as they are heated.
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Two-phase Co-Sb alloy heated to 700°C on a high vacuum heating stage. The antimony-rich phase sublimates during heating, causing exposure of the second phase (right image).
Mixture of magnetite and hematite nanoparticles heated to 1030 °C. This backscattered electron image was acquired simultaneously with the EDS elemental maps (see next image).
Mixture of magnetite and hematite nanoparticles heated to 1030 °C. This combined EDS map of iron and oxygen was acquired simultaneously with the backscattered electron image (see previous image).
Texture development on implant material. As the temperature increases from 700°C to 1300°C (next image) we can observe a completely different surface structure. Temperature: 700°C, Pressure: 120 Pa.
Texture development on implant material. As the temperature increases from 700°C (previous image) to 1300°C we can observe a completely different surface structure. Temperature: 1300°C, Pressure: 120 Pa.
Sodium chloride crystals dissolving and recrystallizing, observed directly in the low-vacuum mode of an environmental SEM.
Tissue fiber wetting and drying observed directly in the low-vacuum mode of an environmental SEM.
Metal nanoparticles coalescing as they are heated.
Documents
Controle de qualidade
O controle de qualidade e a garantia de qualidade são essenciais na indústria moderna. Oferecemos uma gama de ferramentas de microscopia eletrônica e espectroscopia para análises multidimensionais e multimodais de defeitos, permitindo que você tome decisões confiáveis e informadas para controle e melhoria de processos.
Pesquisa de materiais fundamentais
Novos materiais são investigados em escalas cada vez menores para o máximo controle de suas propriedades físicas e químicas. A microscopia eletrônica fornece aos pesquisadores percepções importantes sobre uma ampla variedade de características materiais em escala micro a nano.
Pesquisa de baterias
O desenvolvimento de baterias tornou-se possível pela análise em várias escalas com microTC, SEM e TEM, espectroscopia Raman, XPS e visualização e análise 3D digital. Saiba como essa abordagem fornece as informações estruturais e químicas necessárias para construir baterias melhores.
Pesquisa de polímeros
A microestrutura de polímero determina as características e o desempenho do material em massa. A microscopia eletrônica permite uma análise abrangente micrométrica da morfologia e da composição do polímero para aplicações de Pesquisa e Desenvolvimento e de controle de qualidade.
Pesquisa de metais
A produção efetiva de metais requer um controle preciso de inclusões e precipitações. Nossas ferramentas automatizadas podem executar uma série de tarefas críticas para a análise de metais, incluindo: contagem de nanopartículas, análise química de EDS e preparação de amostras de TEM.
Pesquisa de catálise
Os catalisadores são essenciais para a maioria dos processos industriais modernos. Sua eficiência depende da composição e da morfologia microscópicas das partículas catalíticas. A EM com EDS é a técnica ideal para estudar essas propriedades.
Nanopartículas
Os materiais têm propriedades fundamentalmente diferentes nanometricamente e macrometricamente. Para estudá-las, a instrumentação S/TEM pode ser combinada com a espectroscopia de raios X por energia dispersiva para obter dados de resolução nanométrica ou até mesmo subnanométrica.
Folha de estilo para cartões de instrumentos original
Style Sheet to change H2 style to p with em-h2-header class
Style Sheet for Komodo Tabs
Folha de estilo para Rodapé de suporte e serviço
Folha de estilo para Fontes
Folha de estilo para Cartões
Serviços de microscopia eletrônica para
a ciência dos materiais
Para garantir o desempenho ideal do sistema, fornecemos acesso a uma rede de especialistas em serviços de campo, suporte técnico e peças de reposição certificadas.
