VNIT AA Overview for Upcoming Years and further

Electrical conductivity and density are critical physical properties that influence the behavior of materials in various applications. This is particularly true for metals such as iron and aluminum, which are extensively used in industrial processes. Understanding how these properties change with temperature in their molten states is crucial for optimizing processes like casting, smelting, and electrolysis. This comprehensive overview delves into the electrical conductivities and densities of molten iron and aluminum across different temperatures, shedding light on their implications for practical applications.

Molten Iron
Electrical Conductivity
The electrical conductivity of molten iron varies significantly with temperature, primarily due to the increased mobility of ions and electrons in the liquid state. Generally, as the temperature of iron increases, its electrical conductivity decreases. This inverse relationship is due to the increased atomic vibrations at higher temperatures, which scatter the conduction electrons more effectively, thus impeding their flow.

At the melting point (1538°C or 2800°F): The electrical conductivity of molten iron is approximately 1.0 x 10^6 S/m. At this temperature, the iron is transitioning from a solid to a liquid state, resulting in a significant reduction in conductivity compared to its solid state.

At higher temperatures (1600°C to 1800°C): The electrical conductivity decreases further as temperature increases. For example, at 1600°C, the conductivity might drop to around 0.9 x 10^6 S/m, and by 1800°C, it could be approximately 0.8 x 10^6 S/m. These values highlight the trend of decreasing electrical conductivity with increasing temperature.

Density
Density is another critical parameter that changes with temperature. In its molten state, the density of iron decreases as temperature rises due to the expansion of the liquid.

At the melting point (1538°C): The density of molten iron is about 6.98 g/cm³. This is significantly lower than the density of solid iron, which is around 7.87 g/cm³. The transition from solid to liquid involves an increase in volume and a corresponding decrease in density.

At higher temperatures (1600°C to 1800°C): The density of molten iron continues to decrease. For instance, at 1600°C, the density might be around 6.90 g/cm³, and at 1800°C, it could drop to approximately 6.80 g/cm³. This trend is consistent with the thermal expansion properties of liquids, where increased kinetic energy causes atoms to move apart, reducing density.

Molten Aluminum
Electrical Conductivity
Aluminum, like iron, exhibits changes in electrical conductivity when it transitions to a molten state. However, its conductivity is generally higher than that of iron due to the lower resistivity of aluminum.

At the melting point (660.3°C or 1220.5°F): The electrical conductivity of molten aluminum is about 3.5 x 10^6 S/m. This value is lower than the conductivity of solid aluminum, which is around 3.77 x 10^

1. 1 VNIT Nagpur Alumni Association Welcomes You

2. 2 VNIT AA’s Progress Updates Dear Friends Greeting from VNIT Nagpur Alumni Association!! The mission of VNIT Nagpur Alumni Association (VNIT AA) is to foster strong bonds between Alumni, Students and the Institute (VNIT) to keep Alumni informed and create a network. Through our wide range of programs and services, we aim to empower our Alumni to play an integral role in shaping the future of the Institute, contributing to its growth, and ensuring its enduring excellence. This is yet another small but an impactful step that your association has taken to keep the entire fraternity informed month on month basis about the various activities that your association undertakes, the progress made and the idea underway to reach the path of excellence. Before having a steep look, let’s have a quick glance of your Association…….

3. 3 About VNIT-AA Association of all the Alumni of prestigious Visvesvaraya National Institute of Technology (formerly VRCE) Community binding 27,000 + VNITians spread across globe 17 Global Chapters 3000 + Life Members 17 Cr+ Funds generated so far by the Alumni VNIT-AA’s Mission The mission of VNIT AA is to foster strong bonds between alumni, students and the Institute (VNIT) enabling alumni to remain engaged with their alma mater and help shape its future with the Association’s programs and services. The Alumni, through mentoring activities, industry events, awards etc. aim to assist VNIT to produce Engineers and Architects of the highest caliber, while creating a vibrant professional culture capable of addressing the technological needs of the society.

4. 4 Our Stakeholders & Activities The Alumni Chapters & Alumni Network Yearly Alumni Reunion (YAR) Silver & Golden Jubilee Events Distinguished Alumni Awards “Transcript-on-Demand” Support in Distress & Covid Relief Alumni Newsletter - “The Edge” The Institute 1. Academics and Research Gurudakshina (Swimming Pool & Amenities) Complex, Viswa Life Skill Club, Sir MV Statue, Promenade, Dining Hall. 2. Campus Facilities EV Buses, Ambulance, “Chandrama” - night canteen Tennis Courts, Football Ground 3. Infrastructure Development AI/ML Lab Entrepreneurship Course UG / PG Projects by Industry * Social Responsibility Covid-19 Support to Healthcare facilities in rural & tribal areas. Working with NGOs like “Goonj” & “Prayaas (VNIT students’ initiative)” Support to Campus Shop-keepers during Covid The Students (Future Alumni) Financial Assistance to needy Entrepreneurship Course Life Skills Course Mentorship & Counseling Placements / Internship Assistance Orientation Program for Freshers

5. 5 Stay Connected Stay Tuned…… We are equally excited to update you in brief on how these committees are working for various activities and events entrusted to them and what progress they have made so far, in our next communication coming soon in the early next Month. Till then please follow us on…… 1) LinkedIn : https://www.linkedin.com/company/vnit-nagpur-alumni-association/?viewAsMember=true 2) Facebook : https://www.facebook.com/groups/VRCE.VNIT 3) Instagram : https://instagram.com/vnitnagpuraa?igshid=MzRlODBiNWFlZA   4) Youtube : https://youtube.com/@vnitaa?si=jRk6zMXf-fsurCl7   5) Update your details on website : https://www.vnitalumni.com/user/login.dz 6) Join Your Chapter : https://www.vnitalumni.com/chapters.dz

6. 6 Thank You!